Originally Posted by bread
What kind of headwork are we talking about here?
I have an 00LS with a rev hard kit that I put on a little over a month ago. As I have been taking it easy until I can get it tuned, I've been researching stuff like this and am just wondering what all he did, and what you would consider to be a good headwork route.
Thanks.
just open the head up. port and polish, 3 angle valve job, port match the intake and exhaust. these are your main methods. if you wanna run with a b18c then you have to put the same compression into your motor. 9.0 compression on 8 psi will prob make like 195 to 200 whp. but that compression up to 9.5 and youve got like 220 to 240 whp on 8 psi with good tuning. compression makes the whole difference. im building slightly for turbo and i am using forged pistons with a cr of 9.5 measured in a b18c. measured in a b18b it will be 9.4. those two tenths will make atleast a 15 to 20 hp difference. building a fast motor is like putting a puzzle together, if you dont build it right you will know it.