tangerine_sky

iTrader: (1)

What heads and cam should I get to go on my 416 l92? im looking for 550+ whp that is still streetable if that is possible.

99blancoSS

iTrader: (115)

I've got a set that will give you the best opportunity to do it.
https://ls1tech.com/forums/lsx-parts-sale/899912-new-box-all-pro-race-prepped-heads.html

I'll cut you a deal on them over the stated price

needadvice

355 @ .600...is that right? Seems a little low after porting. Kick *** exhaust numbers though.

Fast GTO

ETP 245's, go big or go home.

needadvice

I don't see those listed on their site, do you have the flow numbers?

Fast GTO

I think they are in the 340's.

Greg Fell

iTrader: (9)

tfs 235's

do some research, you'll see these consistently put down big numbers. tons of avg power.

99blancoSS

iTrader: (115)

It isnt an LS7 head 355 at .600 is very respectable. 242cc intake runner

darrensls1

ETP LS7 heads for the 4.0 bore with an LS7 intake. With a nice size cam you should get some real nice numbers both on the dyno and at the track. Call Cary @ ETP and I guarantee you he'll recommend this setup over his 245 heads.

tangerine_sky

iTrader: (1)

Aren't these heads for 4.125 in. and larger bores?

Same with these aren't they for 4.125 in. bore?

I was just checking these out and they don't seem to flow as much as the WCCH l92's especially on exhaust side. The WCCH l92's look like they have pretty impressive flow numbers. What do you guys think of the WCCH l92's, would they be a good choice?

Greg Fell

iTrader: (9)

the tfs 235 will fit on the 4.065 bore. they use smallish valves and have small runners, and make tons of power. obviously bigger bore = more flow etc, but you will be hard pressed to find a better head.

the l92's are nice, but the l76 manifold is not (imo) and limits the head more than a FAST etc.