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

What mods on a 350SB

Thread Tools
 
Search this Thread
 
Old Mar 5, 2006 | 12:54 AM
  #1  
75stingem's Avatar
75stingem
Thread Starter
Cruising
 
Joined: Oct 2005
Posts: 10
Likes: 0
Default What mods on a 350SB

i got a 75 stingray and wanted to do some performance mods, I would like to know what is the highest HP i can achieve with out boring , and whith what mods.
Reply
Old Mar 5, 2006 | 01:27 AM
  #2  
onaqwst's Avatar
onaqwst
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
Default

cam/intake/heads/headers and some time
Reply
Old Mar 5, 2006 | 02:07 AM
  #3  
1fastC3's Avatar
1fastC3
Racer
20 Year Member
 
Joined: Mar 2005
Posts: 393
Likes: 3
From: Dallas, TX
Default

lest we forget roller rockers
Reply
Old Mar 5, 2006 | 06:38 AM
  #4  
Victor's Avatar
Victor
Melting Slicks
20 Year Member
 
Joined: Jul 2000
Posts: 2,848
Likes: 0
From: Beacon NY
Default

Summit sells a number of Trick Flow kits that have matched cams and cylinder heads for around $1,500-1,800. See the link I posted below.

http://www.summitracing.com/catalogs...rapr/141f.html

When I started my engine project I planned on keeping my 350 a 350. However, I got a little carried away and upgraded to a 383 (for about $1,000 in rotating assembly) and then I bought the 465 HP, 450 TQ Trickflow kit from summit. I don't have my engine together yet, but hopefully within the month I will.

Be carefull and make sure you have twice the ammount of money you plan on spending before you start a project like this. They tend to have a way of getting out of controll.
Reply
Old Mar 5, 2006 | 09:12 AM
  #5  
BrentDev's Avatar
BrentDev
Drifting
10 Year Member
 
Joined: Aug 2001
Posts: 1,823
Likes: 1
From: Arlington TN
Default

Originally Posted by Victor
Summit sells a number of Trick Flow kits that have matched cams and cylinder heads for around $1,500-1,800. See the link I posted below.

http://www.summitracing.com/catalogs...rapr/141f.html

When I started my engine project I planned on keeping my 350 a 350. However, I got a little carried away and upgraded to a 383 (for about $1,000 in rotating assembly) and then I bought the 465 HP, 450 TQ Trickflow kit from summit. I don't have my engine together yet, but hopefully within the month I will.

.
Now saved to my favorites. But - I am a little skeptical that I can take a solid L48, add the $1650 445HP/405 TQ kit to it, and suddenly have 445/405. (It does say tested with a Holley 750 and a Vic jr). But - surely some headers would be needed too.

Otherwise that is a pretty good price!
Reply
Old Mar 5, 2006 | 12:43 PM
  #6  
Star79's Avatar
Star79
Melting Slicks
 
Joined: Apr 2004
Posts: 2,083
Likes: 2
From: Montreal Qc.
Default

The non-roller top-end kits will get you close to those numbers without spending too much extra money, but IIRC you need machine work on the block if you want to switch to roller lifters (pull engine, dissassemble, take to shop, bring checkbook). And yeah you need headers for any of those combos.
Reply
Old Mar 5, 2006 | 02:55 PM
  #7  
63mako's Avatar
63mako
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Default

Originally Posted by Star79
The non-roller top-end kits will get you close to those numbers without spending too much extra money, but IIRC you need machine work on the block if you want to switch to roller lifters (pull engine, dissassemble, take to shop, bring checkbook). And yeah you need headers for any of those combos.
Headers are your 1st upgrade period. Look at the Edelbrock top end kit. They are economical and well matched. The performer kit intake fits under your stock hood

Last edited by 63mako; Mar 5, 2006 at 02:58 PM.
Reply
Old Mar 6, 2006 | 02:45 AM
  #8  
Victor's Avatar
Victor
Melting Slicks
20 Year Member
 
Joined: Jul 2000
Posts: 2,848
Likes: 0
From: Beacon NY
Default

Originally Posted by BrentDev
Now saved to my favorites. But - I am a little skeptical that I can take a solid L48, add the $1650 445HP/405 TQ kit to it, and suddenly have 445/405. (It does say tested with a Holley 750 and a Vic jr). But - surely some headers would be needed too.

Otherwise that is a pretty good price!
Be sure to read the fine print on the catalog page. They state that those numbers are achieved with a 9.5-10:1 compression ratio. If you just swap cylinder heads and cam, but leave the rotating assembly alone, you probably won't have that high of a compression ratio.

If I remember right, I think the L-48 had a compression ratio of around 8.2:1. I also think their cylinder heads had 76cc combustion chambers. The cylinder heads in the trickflow kit that you are looking at have a combustion chamber of 64cc so you'll see an increase in compression ratio, but I'm not sure how much.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

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

 Michael S. Palmer
Old Mar 6, 2006 | 04:04 AM
  #9  
enkeivette's Avatar
enkeivette
Melting Slicks
15 Year Member
 
Joined: Sep 2004
Posts: 2,412
Likes: 3
Default

with all of em, except the roller lifters are important. And the rest of the exhaust is as important as the headers. Don't shoot those new monster collecters through a stock cat.
Reply
Old Mar 6, 2006 | 05:30 PM
  #10  
72LS1Vette's Avatar
72LS1Vette
Safety Car
20 Year Member
 
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Default

The Holley SysteMax kits look pretty interesting also. They are priced around $1,500 or so and include cam, lifters, heads and intake manifold. There is one that is supposed to produce 350 HP and 400 lb/ft at around 4,000 RPM. The torque numbers are around 275 event at 2,500 so it should make for a nice neck-snapping ride. Like the above posts said, the numbers are going to vary depending on the compression ratio.



Rick B.
Reply

Get notified of new replies

To What mods on a 350SB





All times are GMT -4. The time now is 09:00 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
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