Help on LS2 build!
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Teching In
Joined: Sep 2011
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Help on LS2 build! I have a bare LS2 that I will begin building shortly. I would like to get the main parts spec'd out before I start. I'm new to LS2's and this will be my first engine build. Here are the parts I was thinking
Wiseco pistons at stock bore (65cc)
Carrillo connecting rods at 6.125" with 4" stroke
Trick Flow 235 heads (or should I go with LS3 heads?)
Lunati High RPM pushrods and roller rockers.
Thats what I have come up with so far but I still need to figure out what crankshaft. I would like to stroke it to 4" but there are many choices out there, can anyone recommend me a good crank?
I was also thinking of the Texas Speed 228R cam, any other suggestions?
School me please...
Wiseco pistons at stock bore (65cc)
Carrillo connecting rods at 6.125" with 4" stroke
Trick Flow 235 heads (or should I go with LS3 heads?)
Lunati High RPM pushrods and roller rockers.
Thats what I have come up with so far but I still need to figure out what crankshaft. I would like to stroke it to 4" but there are many choices out there, can anyone recommend me a good crank?
I was also thinking of the Texas Speed 228R cam, any other suggestions?
School me please...
Thread Starter
Teching In
Joined: Sep 2011
Posts: 7
Likes: 0
It will be a street driven motor with occasional track use (not drag strip). Its going into my 98 M3 and will be a weekend driver but may do some DD. I dont mind a harsh ride (choppy cams, etc.) although I would like to put down at least 500whp.
I'm doing the callies crank and rods with Wiseco pistons. If you are stuck on TFS heads, the 235's would work great, but even the 225's would be great. Rockers, either stock or YT's, more ppl run one of those 2 choices by far. You will want to choice the heads and the pistons at the same time. The TFS only come in 70cc chambers and shouldn't be milled much past 65-64 or so. What is your desired compression?
Thread Starter
Teching In
Joined: Sep 2011
Posts: 7
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I'm doing the callies crank and rods with Wiseco pistons. If you are stuck on TFS heads, the 235's would work great, but even the 225's would be great. Rockers, either stock or YT's, more ppl run one of those 2 choices by far. You will want to choice the heads and the pistons at the same time. The TFS only come in 70cc chambers and shouldn't be milled much past 65-64 or so. What is your desired compression?
YT?
Thread Starter
Teching In
Joined: Sep 2011
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So I would need to match the chambers on the head to the pistons then. So if I had a 70cc piston and the same on the head how would that effect CR.
EDIT: Nvm, I found a CR calculator. So If I went with wisecos -8cc dome matched to a 65cc chamber I would come out at 11.2:1. Matched to a 70cc chamber it would be around 10.5:1.
So I guess I've got the rods and pistons figured out now. Just need to figure out what crank and cylinder head to go with.
Last edited by cfn101788; Sep 20, 2011 at 10:23 AM.
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