Going Bigger Cubes - What options??
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Intermediate
Joined: Jan 2009
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Going Bigger Cubes - What options??
So I'll hopefully be picking up a C5 FRC in the near future, and plan on going bigger cubes...
Not really sure what would be the best engine combination though - 383? 402? 408?
I plan on driving the car on the street 90% of the time, but it won't be a daily driver, and maybe take it to the strip once in a while. Don't plan on going FI, and probably not even run nitrous. I think I will just keep it N/A. I want to be over 500 RWHP and 500 TQ.
What would be the best option for me to go with?
Also, who should I get the engine from and who should I have build it? I'm located in north Florida.
Thanks!!
Not really sure what would be the best engine combination though - 383? 402? 408?
I plan on driving the car on the street 90% of the time, but it won't be a daily driver, and maybe take it to the strip once in a while. Don't plan on going FI, and probably not even run nitrous. I think I will just keep it N/A. I want to be over 500 RWHP and 500 TQ.
What would be the best option for me to go with?
Also, who should I get the engine from and who should I have build it? I'm located in north Florida.
Thanks!!
Burning Brakes
Joined: Mar 2008
Posts: 983
Likes: 36
From: Middle Of Kali CA
So I'll hopefully be picking up a C5 FRC in the near future, and plan on going bigger cubes...
Not really sure what would be the best engine combination though - 383? 402? 408?
I plan on driving the car on the street 90% of the time, but it won't be a daily driver, and maybe take it to the strip once in a while. Don't plan on going FI, and probably not even run nitrous. I think I will just keep it N/A. I want to be over 500 RWHP and 500 TQ.
What would be the best option for me to go with?
Also, who should I get the engine from and who should I have build it? I'm located in north Florida.
Thanks!!
Not really sure what would be the best engine combination though - 383? 402? 408?
I plan on driving the car on the street 90% of the time, but it won't be a daily driver, and maybe take it to the strip once in a while. Don't plan on going FI, and probably not even run nitrous. I think I will just keep it N/A. I want to be over 500 RWHP and 500 TQ.
What would be the best option for me to go with?
Also, who should I get the engine from and who should I have build it? I'm located in north Florida.
Thanks!!
You will need to budget a good 10K + as you will need alot more than just BIG CUBES. Labor being a big piece unless you can go used motor cheaper clutch and do ALL the work. All $ and work at risk if not done right.
I am using a darton Wet Sleeved LS1 427 stress relieved block to start with. From their I am having a Highly qualified (MSI) do the build and install.
John
Thread Starter
Intermediate
Joined: Jan 2009
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What no 427 on your list
You will need to budget a good 10K + as you will need alot more than just BIG CUBES. Labor being a big piece unless you can go used motor cheaper clutch and do ALL the work. All $ and work at risk if not done right.
I am using a darton Wet Sleeved LS1 427 stress relieved block to start with. From their I am having a Highly qualified (MSI) do the build and install.
John
You will need to budget a good 10K + as you will need alot more than just BIG CUBES. Labor being a big piece unless you can go used motor cheaper clutch and do ALL the work. All $ and work at risk if not done right.
I am using a darton Wet Sleeved LS1 427 stress relieved block to start with. From their I am having a Highly qualified (MSI) do the build and install.
John
If you don't mind me asking, how much is the install/build costing you?
Thanks
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
FYI,,Chevy High performance Magazine just had an article on an company that has developed a deck plate that lets you safely take an LS out to 500 (bigger bore/longer stroke)cubes and with a moderate cam and tune put out over 700horse naturally aspirated. Kinda pricey though,,around $15K for a short block!!
Thread Starter
Intermediate
Joined: Jan 2009
Posts: 29
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FYI,,Chevy High performance Magazine just had an article on an company that has developed a deck plate that lets you safely take an LS out to 500 (bigger bore/longer stroke)cubes and with a moderate cam and tune put out over 700horse naturally aspirated. Kinda pricey though,,around $15K for a short block!!
I'm looking to spend around $10k tops including complete long block, new clutch, exhaust, and injectors. I think that's possible..
Burning Brakes
Joined: Mar 2008
Posts: 983
Likes: 36
From: Middle Of Kali CA
Well after talking to a guy over on LS1Tech, I am looking at a 427. He mentioned that as long as the stock LS1 block checked out, I could re-sleeve it and turn it into a 427. That way I wouldn't have to buy a new block. So I'll have to look into that if that would be a better way to go and save me some money..
If you don't mind me asking, how much is the install/build costing you?
Thanks
If you don't mind me asking, how much is the install/build costing you?
Thanks
Just be carefull of the USED stuff. Some great deals and or the I F**ked up deals. Labor will eat you alive if the little issues need attention and you HIRE it out.....
Thread Starter
Intermediate
Joined: Jan 2009
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Well I got a REAL good deal on the block I have. Darton sleeves + proper install machining is 3K+. An LS2 block is much cheaper albiet not a 427 but bigger than 347... The Rotating assembly of crank, rods, pistons, rings, bearings and such balanced is 2-5K depending on your application. Supporting a good cam, heads, springs, intake the spending limit is endless.
Just be carefull of the USED stuff. Some great deals and or the I F**ked up deals. Labor will eat you alive if the little issues need attention and you HIRE it out.....
Just be carefull of the USED stuff. Some great deals and or the I F**ked up deals. Labor will eat you alive if the little issues need attention and you HIRE it out.....
I'm debating whether it would be a good idea to re-sleeve my LS1 block into a 427 or just start fresh with a new LS2 block and turn that into a 427..
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Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
Just a word of caution,,Do some research and ask some questions!! October 08 Car Craft magazine had a really good write up on bore and stroke combos for the LS family.It also went into the big pitfalls of strokers,, namely that they pull the pistons too far down and skuff the piston skirts in short order.They showed skuffed pistons out of a 4.00 in stroked motor with only 2000 street miles. For a 4 in. stroke you need the bore bottoms to be chamfered and polished and or special short skirt pistons. You can also go with Darton sleeves that extend the bore length.(almos missed that one) A really informative article with motor and parts sources and a list of block/bore/stroke combos,and also has a list of reluctor wheel tooth counts.. Good luck and have fun on your quest,,just arm yourself with as much inf for some educated questions to keep you from a disappointing investment. A properly built unit can be a blast!!
Last edited by itzza427; Mar 23, 2009 at 12:09 PM.
Racer
Joined: Oct 2003
Posts: 377
Likes: 2
From: Palm Beach Gardens FL
Racer
Joined: Feb 2005
Posts: 491
Likes: 2
From: Arlington Hts. IL
I hate these threads, they always leave me with more questions and no hard answers. Is the LS3 block not the strongest of the production blocks? The LSX is the big inch winner but 110 lbs heavier?The C5R light but 6K for the block alone. then there is the world parts block LS7X but 3K. Then what to do with the drivetrain?
Drifting
Joined: Apr 2003
Posts: 1,387
Likes: 10
From: Jacksonville FL
If you're serious about sticking to a $10k budget I'd look at a 402. If thats just a goal or a number you came up with I'd say bigger is better. If you want to optimize any big cube motor the difference in cost will be primarily the shortblock. They will all need the same supporting mods (clutch, headers, etc.). You could probably make good power with ported ls6 heads and an ls6 intake on a 402, and later upgrade, but I don't think you'd see 500/500. I wouldn't want to use an ls6 intake on anything larger personaly. If it's feasable I'd look at a 416 or 427 to reach your goal.
As for where to get it I'd talk to the guys at Vengeance Racing. They are located in north GA.
As for where to get it I'd talk to the guys at Vengeance Racing. They are located in north GA.
Le Mans Master
Joined: Sep 2007
Posts: 7,604
Likes: 8
From: Belleville Il
Drifting
Joined: Apr 2008
Posts: 1,316
Likes: 2
From: St. Louis Mo
