C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Blueprint Engines?

Thread Tools
 
Search this Thread
 
Old Sep 18, 2018 | 05:50 PM
  #21  
JoeMinnesota's Avatar
JoeMinnesota
Pro
 
Joined: May 2016
Posts: 708
Likes: 150
From: Minnesota
Default

You could also look at Tri Star Engines in Baldwin, WI. They provide thousands of stock rebuilds for outfits like O'Reilly or shops and other chains, and also offer high performance pkgs off their site.
Reply
Old Sep 18, 2018 | 06:26 PM
  #22  
Buccaneer's Avatar
Buccaneer
Safety Car
Veteran: Air Force
20 Year Member
All Eyes On Me
Liked
 
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
Default

Sorry, I didn't know how much you wanted to spend since you didn't say an actual amount, but I made an assumption based on that you have a 3.70 gear and 2500 TC and probably wanted a bit of performance when you hit the loud peddle. Like mentioned by a couple of guys, going cheap may bite you in the backside and then you get to do it all over again. It then starts to get painful the second time depending on how deep your pockets are. There is one more concern about that motor, but it may not really be a concern to most people is that it is a .040 over block already, which to me means that the motor was probably .030 over to start and needed to go .040 over to make it right, but may not be the case. Now the motor is a 357/358 that is .040 over. If something goes bad and it needs to be bored again, going .060 can be rather dicey and it may become a heater which would suck and not make for an enjoyable cruiser. Not that anything would happen, but things do happen and just throwing it out there for food for thought. I would be more comfortable with a .030 over 355 motor instead.

Last edited by Buccaneer; Sep 18, 2018 at 06:28 PM.
Reply
Old Sep 18, 2018 | 07:27 PM
  #23  
Vette5311's Avatar
Vette5311
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2018
Posts: 10,658
Likes: 2,140
From: Golden Colorado
Default This is all true but.......

Originally Posted by Buccaneer
Sorry, I didn't know how much you wanted to spend since you didn't say an actual amount, but I made an assumption based on that you have a 3.70 gear and 2500 TC and probably wanted a bit of performance when you hit the loud peddle. Like mentioned by a couple of guys, going cheap may bite you in the backside and then you get to do it all over again. It then starts to get painful the second time depending on how deep your pockets are. There is one more concern about that motor, but it may not really be a concern to most people is that it is a .040 over block already, which to me means that the motor was probably .030 over to start and needed to go .040 over to make it right, but may not be the case. Now the motor is a 357/358 that is .040 over. If something goes bad and it needs to be bored again, going .060 can be rather dicey and it may become a heater which would suck and not make for an enjoyable cruiser. Not that anything would happen, but things do happen and just throwing it out there for food for thought. I would be more comfortable with a .030 over 355 motor instead.
If something does go wrong I doubt they rebuild it. Check on their warrenty but I would imagine they would just send another and take it back as a core. Just guessing.
Reply
Old Sep 18, 2018 | 07:31 PM
  #24  
jb78L-82's Avatar
jb78L-82
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2007
Posts: 7,445
Likes: 971
From: Tennessee/Rhode Island
Default

Originally Posted by Vette5311

If something does go wrong I doubt they rebuild it. Check on their warrenty but I would imagine they would just send another and take it back as a core. Just guessing.
I think he was referring to out of warranty. I brought the .040 bore issue earlier as well in my earlier post. (#13). Heck, I don't like the fact that i had to bore my numbers matching L-82 block .030 back in 2014 to get it right when I rebuilt/upgraded my L-82. I wish I could have gone .020 instead....

Last edited by jb78L-82; Sep 18, 2018 at 07:33 PM.
Reply
Old Sep 18, 2018 | 07:35 PM
  #25  
naramlee's Avatar
naramlee
Burning Brakes
 
Joined: May 2018
Posts: 797
Likes: 156
From: England AR
Default

Originally Posted by Buccaneer
I would be more comfortable with a .030 over 355 motor instead.
that is what my motor is, but with about 3k porting in the heads, a 355 is a very under-estimated motor to the average red-neck, they just want their 383's

but the 408w was my first motor, and I couldn't be happier for under 5k having a very solid running engine, NOW... that said, who knows if they've changed and gotten cheaper in the last 5 years. It does have a steel crank but cheaper forged pistons, but I have ragged the heck outa this thing shifting around 6500 and it still keeps going strong, for me... it's been money well spent

Last edited by naramlee; Sep 18, 2018 at 07:37 PM.
Reply
Old Sep 18, 2018 | 07:46 PM
  #26  
jb78L-82's Avatar
jb78L-82
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2007
Posts: 7,445
Likes: 971
From: Tennessee/Rhode Island
Default

355 is a very under-estimated motor to the average red-neck, they just want their 383's
I have been saying the same for ever. Yes, built exactly with the same top quality components the 383 with it extra 28 cubes will make a bit more power...BUT its not ground breaking. In fact, folks have been building smaller engines forever that can and will smoke the bigger cube motor. Its all about the components and the match of said components to the application.

This reminds me of the younger generation crowd that argue that the GM V6 2.8/3.1/3.4/3.8 liter series and how the "mighty" 3.8 makes sooo much more power and torque than the smaller V6's just by virtue of the displacement...not so fast son...maybe, maybe not and the difference often is VERY small and barely noticeable on the street.

Last edited by jb78L-82; Sep 18, 2018 at 07:47 PM.
Reply
Old Sep 18, 2018 | 08:21 PM
  #27  
naramlee's Avatar
naramlee
Burning Brakes
 
Joined: May 2018
Posts: 797
Likes: 156
From: England AR
Default

Originally Posted by jb78L-82
I have been saying the same for ever. Yes, built exactly with the same top quality components the 383 with it extra 28 cubes will make a bit more power...BUT its not ground breaking. In fact, folks have been building smaller engines forever that can and will smoke the bigger cube motor. Its all about the components and the match of said components to the application.

This reminds me of the younger generation crowd that argue that the GM V6 2.8/3.1/3.4/3.8 liter series and how the "mighty" 3.8 makes sooo much more power and torque than the smaller V6's just by virtue of the displacement...not so fast son...maybe, maybe not and the difference often is VERY small and barely noticeable on the street.

BAHAHAHA the 3.8 was a joke... the 4.3 was what you wanted... WAY better torque... that's cuz kids just see the HP... like Vic Sr said, "you take HP and i'll take torque, and i'll wait for you at the finish line"

reminds me of the 2.5 being replaced with the 2.2... what a joke BUT at least you would wind the 2.2 up... first time over 5k for the iron duke, well there went the oiling rings

sure the rule of displacement holds true, if it's a 500cu vs 289cu... but some of these combo's aren't a magic bullet... the big races you see 302 fords winning, not the 351... but there tons of variables there, BUT there is a reason... and it's not just cubes
same with SBC's... you see more 355's than 383 winning big... there is a reason, I don't know enough engine theory to know why... but if the big dogs are doing it... maybe you should pay attention lol

I love the amsoil engine builders channel for these reasons... there are ALOT of myths that they bust in real time and I've learned ALOT from them

Last edited by naramlee; Sep 18, 2018 at 08:26 PM.
Reply
Old Sep 19, 2018 | 01:31 AM
  #28  
Buccaneer's Avatar
Buccaneer
Safety Car
Veteran: Air Force
20 Year Member
All Eyes On Me
Liked
 
Joined: Nov 2005
Posts: 3,532
Likes: 1,185
From: Arizona - If you don’t know CFI, STOP proliferating the myths around it...
Default

Originally Posted by jb78L-82
I think he was referring to out of warranty. I brought the .040 bore issue earlier as well in my earlier post. (#13). Heck, I don't like the fact that i had to bore my numbers matching L-82 block .030 back in 2014 to get it right when I rebuilt/upgraded my L-82. I wish I could have gone .020 instead....
Yeah, I should have been more specific about that if something went wrong. I totally missed your comment in #13, at least we think alike about the same possible issues.

Last edited by Buccaneer; Sep 19, 2018 at 01:32 AM.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Sep 19, 2018 | 06:37 AM
  #29  
ajrothm's Avatar
ajrothm
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Default

$2500 for a 356” with vortec heads, roller cam and 1 pc rear main seal is a great value. Especially dyno tested and with a warranty. I would absolutely have no issue purchasing and running that engine. There is absolutely nothing wrong with .040” over bore....(or even .060” over for that matter on most SBCs, we even used to bore 400s .060” after sonic checking them).

Dont get caught up on the semantics around here. 373hp for $2500 is good power for the price point and will make a fun driver.

I dont know how this thread went from a $2500 budget replacement engine, to a $5500 hot rod engine but.... $5500 just for the lump isn’t feasible for everyone, and certainly not “budget”...


GJohnson, FWIW, I just finished a build on a 70’ 350 numbers matching deal that we warmed up a little... I spent well over $4k rebuilding it with some slight upgrades, and I doubt it makes much over 350hp....and it doesn’t have a roller cam. It runs fine, pretty fun to drive with 3.55s and a 2500 converter... yours is a steal compared to mine.


Last edited by ajrothm; Sep 19, 2018 at 06:38 AM.
Reply
Old Sep 19, 2018 | 12:58 PM
  #30  
Vette5311's Avatar
Vette5311
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2018
Posts: 10,658
Likes: 2,140
From: Golden Colorado
Default Yes......

Originally Posted by ajrothm
$2500 for a 356” with vortec heads, roller cam and 1 pc rear main seal is a great value. Especially dyno tested and with a warranty. I would absolutely have no issue purchasing and running that engine. There is absolutely nothing wrong with .040” over bore....(or even .060” over for that matter on most SBCs, we even used to bore 400s .060” after sonic checking them).

Dont get caught up on the semantics around here. 373hp for $2500 is good power for the price point and will make a fun driver.

I dont know how this thread went from a $2500 budget replacement engine, to a $5500 hot rod engine but.... $5500 just for the lump isn’t feasible for everyone, and certainly not “budget”...


GJohnson, FWIW, I just finished a build on a 70’ 350 numbers matching deal that we warmed up a little... I spent well over $4k rebuilding it with some slight upgrades, and I doubt it makes much over 350hp....and it doesn’t have a roller cam. It runs fine, pretty fun to drive with 3.55s and a 2500 converter... yours is a steal compared to mine.

This what I have told my customers...I can not build that engine for that price.....and matching the computer machine work is beyond most local shops. Unless you have a #s matching block or some other compelling reason to keep and rebuild your engine this is a no brainier. Is it a race engine....no. What a lot of my customers want / need is not a race engine but just a spirited driver. Just my .02 cents.
Reply
Old Sep 19, 2018 | 02:08 PM
  #31  
naramlee's Avatar
naramlee
Burning Brakes
 
Joined: May 2018
Posts: 797
Likes: 156
From: England AR
Default

Originally Posted by ajrothm
I dont know how this thread went from a $2500 budget replacement engine, to a $5500 hot rod engine but.... $5500 just for the lump isn’t feasible for everyone, and certainly not for anyone with a budget.
i didnt mean for it to, i was offering my experience with Blueprint and the cost ratio of hp with their product.
Reply
Old Sep 19, 2018 | 03:06 PM
  #32  
ajrothm's Avatar
ajrothm
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Default

Originally Posted by naramlee
i didnt mean for it to, i was offering my experience with Blueprint and the cost ratio of hp with their product.
Your post was good feedback on a Blueprint engine, which was the topic of discussion... Definitely good info pertaining to the topic.
Reply
Old Sep 20, 2018 | 02:13 PM
  #33  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Default

For a "cruiser" he doesnt need forged parts. It may be "ideal" on mosts wish list but its not necessary.
A cast piston/crank motor can do 100k just fine unless he gets way off with tuning, the same will happen on a forged motor it just takes longer.
Reply
Old Sep 20, 2018 | 03:32 PM
  #34  
ajrothm's Avatar
ajrothm
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Default

Originally Posted by cuisinartvette
For a "cruiser" he doesnt need forged parts. It may be "ideal" on mosts wish list but its not necessary.
A cast piston/crank motor can do 100k just fine unless he gets way off with tuning, the same will happen on a forged motor it just takes longer.
Hundreds of thousands of LS engines have been beat on for hundreds of thousands of miles, on cast pistons and cast cranks, PM rods...

Cast stuff holds up fine as long as its from a decent company and you don't rattle the engine to death... I would have no issues making 500hp on a NA small block with cast pistons/cranks, as long as I didn't have to spin it real high....say <6000 rpms.

For a cruiser/weekend warrior making 400hp, the cast stuff will work fine... Assuming its all machined and assembled correctly.

FWIW, I sprayed a 150 shot on cast piston/smogger 454 for an entire summer way back in the early 90s...ran 11.50s and never hurt it, probably put 20 bottles or more through it.
Reply
Old Sep 20, 2018 | 04:13 PM
  #35  
pauldana's Avatar
pauldana
Race Director
Supporting Member
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
Default

Originally Posted by ajrothm
Hundreds of thousands of LS engines have been beat on for hundreds of thousands of miles, on cast pistons and cast cranks, PM rods...

Cast stuff holds up fine as long as its from a decent company and you don't rattle the engine to death... I would have no issues making 500hp on a NA small block with cast pistons/cranks, as long as I didn't have to spin it real high....say <6000 rpms.

For a cruiser/weekend warrior making 400hp, the cast stuff will work fine... Assuming its all machined and assembled correctly.

FWIW, I sprayed a 150 shot on cast piston/smogger 454 for an entire summer way back in the early 90s...ran 11.50s and never hurt it, probably put 20 bottles or more through it.

Generally I agree... But I did snap a SKAT cast crank on a 383 500hp... snapped in in half

But we all know I run my stuff hard.

Last edited by pauldana; Sep 20, 2018 at 04:14 PM.
Reply
Old Sep 20, 2018 | 10:40 PM
  #36  
naramlee's Avatar
naramlee
Burning Brakes
 
Joined: May 2018
Posts: 797
Likes: 156
From: England AR
Default

Originally Posted by ajrothm
Hundreds of thousands of LS engines have been beat on for hundreds of thousands of miles, on cast pistons and cast cranks, PM rods...

Cast stuff holds up fine as long as its from a decent company and you don't rattle the engine to death... I would have no issues making 500hp on a NA small block with cast pistons/cranks, as long as I didn't have to spin it real high....say <6000 rpms.

For a cruiser/weekend warrior making 400hp, the cast stuff will work fine... Assuming its all machined and assembled correctly.

FWIW, I sprayed a 150 shot on cast piston/smogger 454 for an entire summer way back in the early 90s...ran 11.50s and never hurt it, probably put 20 bottles or more through it.

you see that article about 1200hp on the stock LS bottom end 4.8? all it had was modified plasma moly rings with alittle additional gap for boost, but went all the way to 1200hp before a ring contacted and popped the top of the piston off, that was the only reason it failed

https://www.hotrod.com/articles/hrdp...g-bang-theory/
Reply
Old Sep 20, 2018 | 10:41 PM
  #37  
naramlee's Avatar
naramlee
Burning Brakes
 
Joined: May 2018
Posts: 797
Likes: 156
From: England AR
Default

Originally Posted by ajrothm
Hundreds of thousands of LS engines have been beat on for hundreds of thousands of miles, on cast pistons and cast cranks, PM rods...

Cast stuff holds up fine as long as its from a decent company and you don't rattle the engine to death... I would have no issues making 500hp on a NA small block with cast pistons/cranks, as long as I didn't have to spin it real high....say <6000 rpms.

For a cruiser/weekend warrior making 400hp, the cast stuff will work fine... Assuming its all machined and assembled correctly.

FWIW, I sprayed a 150 shot on cast piston/smogger 454 for an entire summer way back in the early 90s...ran 11.50s and never hurt it, probably put 20 bottles or more through it.

you see that article about 1200hp on the stock LS bottom end 4.8? all it had was modified plasma moly rings with alittle additional gap for boost, but went all the way to 1200hp before a ring contacted and popped the top of the piston off, that was the only reason it failed

https://www.hotrod.com/articles/hrdp...g-bang-theory/

Originally Posted by pauldana
Generally I agree... But I did snap a SKAT cast crank on a 383 500hp... snapped in in half

But we all know I run my stuff hard.
what tires did you have on it at the time and what gear??
Reply
Old Sep 22, 2018 | 09:23 AM
  #38  
Shovels and Vettes's Avatar
Shovels and Vettes
Le Mans Master
 
Joined: May 2008
Posts: 9,063
Likes: 2,736
2022 C3 of the Year Finalist - Modified
Default

These threads always end up the same......somebody asks about a mild upgrade, and next thing you know, we are at a 800 cubic inch rocket motor. The OP needs to think about what his needs are, how he is going to drive the car, and keep the choice appropriate......DO NOT LET others influence you with their ego. Everything has a price, nothing is free.
Reply




All times are GMT -4. The time now is 01:42 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE