Better then piece meal info together
LS2 Stroker Kit help..
Thread Starter
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
LS2 Stroker Kit help..
So just got off the phone with texas speed and the rep. said:
-I cant use an LS2 block for a 402 stroker motor if its been bored .030?Cause he said its "trash"?
-Using a big cam (like MS4 or bigger) with FI wont help with power,and I will actually make MORE power with a smaller cam?That using a big
cam is the opposite of whats right?
I was gonna ask about what pistons to use but didnt have a chance cause he hung up
So I figured Id just double check with you guys if those two things are true.
Thanks
-I cant use an LS2 block for a 402 stroker motor if its been bored .030?Cause he said its "trash"?
-Using a big cam (like MS4 or bigger) with FI wont help with power,and I will actually make MORE power with a smaller cam?That using a big
cam is the opposite of whats right?
I was gonna ask about what pistons to use but didnt have a chance cause he hung up
So I figured Id just double check with you guys if those two things are true.
Thanks
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
if the LS2 block has been PREVIOUSLY been bored out, then IIRC NO you cant use it for a 402.
yes smaller cams work better with FI
Bigger cams are for NA too a point - Too big of a cam and you gain nothing.
yes smaller cams work better with FI
Bigger cams are for NA too a point - Too big of a cam and you gain nothing.
Last edited by AU N EGL; Jun 21, 2011 at 04:56 PM.
Thread Starter
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
Damn, well thanks for the info on the boring...
and I literally just read a post yesterday where a member said that big heads and a big cam WITH FI yields alottt more power...
he talked about some dude running an MS4 with FI
Thanks for the quick response btw
and I literally just read a post yesterday where a member said that big heads and a big cam WITH FI yields alottt more power...
he talked about some dude running an MS4 with FI
Thanks for the quick response btw
Le Mans Master
Joined: Oct 2010
Posts: 7,373
Likes: 1,128
From: cold & windy
i thing the FI & cam issue kinda depends on the type of FI you're using. i can see a bigger cam working better/gaining more with a top-mount than with a turbo or centri, but even then, you still have to have good timing on the valve events to retain your boost
Tech Contributor
Joined: Jan 2007
Posts: 19,246
Likes: 1,092
From: Dyer, IN
Instead of relying on forum BS, why not contact ECS, Corvettes of Westchester, etc. Tell them what your goals are, and find out what is possible.
Thread Starter
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
Drifting
Joined: Jan 2010
Posts: 1,447
Likes: 1
From: Katy TX
So just got off the phone with texas speed and the rep. said:
-I cant use an LS2 block for a 402 stroker motor if its been bored .030?Cause he said its "trash"?
-Using a big cam (like MS4 or bigger) with FI wont help with power,and I will actually make MORE power with a smaller cam?That using a big
cam is the opposite of whats right?
I was gonna ask about what pistons to use but didnt have a chance cause he hung up
So I figured Id just double check with you guys if those two things are true.
Thanks
-I cant use an LS2 block for a 402 stroker motor if its been bored .030?Cause he said its "trash"?
-Using a big cam (like MS4 or bigger) with FI wont help with power,and I will actually make MORE power with a smaller cam?That using a big
cam is the opposite of whats right?
I was gonna ask about what pistons to use but didnt have a chance cause he hung up
So I figured Id just double check with you guys if those two things are true.
Thanks
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Burning Brakes
Joined: Mar 2011
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From: Houston Tx
Team Owner
Joined: Sep 2003
Posts: 43,084
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From: Raleigh / Rolesville NC
Thread Starter
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
"
I would LOVE more info on this guys, keep it going
AND
would this be the right section to ask that based on your all's knowledge here whats the real difference between the
"Callies Compstar Forged Crankshaft"
and the
"Callies Dragonslayer Crankshaft" ?
Last edited by TriplBlk; Jun 21, 2011 at 07:53 PM.
Thread Starter
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
I think Callies says the Compstar is good to 1000HP or so. All finish machining is done state-side. Eagle, SCAT and a few others are off-shore forgings. I run an Eagle with no problems at all.
Thread Starter
Safety Car
Joined: Jun 2009
Posts: 3,888
Likes: 2
From: Frederick, Maryland
Ok great, the Compstar is the $135 add on from the Eagle. I hope to be around 800, So I assume the Eagle will be fine?
Another thing is pistons? They say go with weisco pistons for boosted apps.
Whats the diff between Weisco and Diamond? And how do I determine what dish/flat top I want?
Sorry if thats too much
Thanks for the help tho, I love having threads to go back to and re-read.
Another thing is pistons? They say go with weisco pistons for boosted apps.
Whats the diff between Weisco and Diamond? And how do I determine what dish/flat top I want?
Sorry if thats too much
Thanks for the help tho, I love having threads to go back to and re-read.
Tech Contributor
Joined: Sep 2005
Posts: 1,731
Likes: 82
From: New Market AL
I would suggest you buy some books and do a lot of reading on building high performance LS engines before you start ordering parts for an 800 hp engine build. The questions you are asking are very basic knowledge for an engine builder. It is very important that you match the parts in the engine for your expected performance level, driving habits and power adder. You will need different pistons, camshaft, compression ratio, head gaskets, studs, etc based on naturally aspirated, centrifugal supercharger, roots supercharger, turbo, or nitrous oxide. You can't choose a piston crown/dish until you determine what compression ratio your build needs and you know what combustion chamber volume your heads will have.
Plus there is more to building an 800 hp engine that simply assembling a pile of parts. It may be time to start talking with an engine builder for this level of performance...
Plus there is more to building an 800 hp engine that simply assembling a pile of parts. It may be time to start talking with an engine builder for this level of performance...
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
785 hp engine package
http://www.schwankeshortblocks.com/s...?i=1536&c=1084
RHS Hot Rod Turn Key 502c/810hp
http://www.golenengineservice.com/en...-rod-turn-key/
http://www.schwankeshortblocks.com/s...?i=1536&c=1084
RHS Hot Rod Turn Key 502c/810hp
http://www.golenengineservice.com/en...-rod-turn-key/
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
