T/W's have a max lift of .540 and track heat's are .600 Any other major differences? What are the performance differences between the two? Which is recommended for a 347?
Both flow the same. The track heat heads have a slightly better valve train package and no smog ports. Go with regular TW heads and a GOOD valve spring. I think track heat springs are only 120lbs on the seat. If you're doing it right, you will need a bit more spring.
I have a TW headed 347 so if you need any help just ask
Both flow the same. The track heat heads have a slightly better valve train package and no smog ports. Go with regular TW heads and a GOOD valve spring. I think track heat springs are only 120lbs on the seat. If you're doing it right, you will need a bit more spring.
I have a TW headed 347 so if you need any help just ask
Thanks, I have a lot of q's but i won't take up all your time. I was wondering how guys use TW's with cams with a greater lift than .540? I want to use these heads with an aggressive cam while still using the j4j1 computer.
P.S. I used to live on LI. I like your combo but want to keep mine at about 9.5cr....future vortech.
Where on LI did you live? What made you move down south? I think the hurricane would keep me from moving down there even though it is cheaper to live than up here.
Used to live in the Hauppauge/Smithtown area before my company relocated me. And its not as cheap as you think anymore in Palm Beach County.
What r the specs of your cam if u don't mind me asking. I am thinking about using them (FTI). They claim to be $300.00 for a custom roller whereas Comp cams are $375 for an off the shelf.
a 347 with 9.0-9.5 cr. TW heads, ported cobra lower, throttle opening bored for 75mm TB upper Cobra, LT's, Flowmasters. It'll eventually be s/c, but for now (1-2yrs) N/A. I am stuck on the cam selection