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-   -   Thoughts on Dart pro1 225 Heads for my LQ4? (https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/thoughts-dart-pro1-225-heads-my-lq4-519246/)

WhiteChevy3 06-24-2013 10:38 AM

Thoughts on Dart pro1 225 Heads for my LQ4?
 
Hey guys how do u think these heads will do on my cammed lq4? Im running a 226 230,600.600 112+4 eps cam.
I can get these heads for 800$ with no springs

WhiteChevy3 06-24-2013 10:50 AM

1 Attachment(s)
Attachment 114186

dirt track racer 81 06-24-2013 11:40 AM

Can't go wrong with the L92 IMO.
I've only been around 1 set of these heads, they were on an lq9 with a stock intake and made 410 rwhp.. He did the tuning himself.
I'm making 455 rwhp with stock L92s milled .040..

Both on a mustang Dyno

2plus2 07-07-2013 01:45 PM


Originally Posted by dirt track racer 81 (Post 5117682)
Can't go wrong with the L92 IMO.
I've only been around 1 set of these heads, they were on an lq9 with a stock intake and made 410 rwhp.. He did the tuning himself.
I'm making 455 rwhp with stock L92s milled .040..

Both on a mustang Dyno

455 on a 6.0 and untouched L92s?

dirt track racer 81 07-07-2013 02:47 PM

Milled .040 and the exhaust ports just the casting smoothed down and bead blasted. No real porting at all.

zero2sixT 07-07-2013 08:41 PM

$800 is a good deal. You're going to want more cam, but should make good power.

N/ALS1 07-08-2013 03:01 AM

I'm confused, are these cathedral heads or l92 style heads? I'm asking because I have the RHS 225 heads p/n 54302, paid $500. They had a little over 1k miles on them. And they are cathedral heads.

dirt track racer 81 07-08-2013 04:24 AM

Cathedral

03sierraslt 07-08-2013 08:29 AM


Originally Posted by dirt track racer 81 (Post 5117682)
Can't go wrong with the L92 IMO.
I've only been around 1 set of these heads, they were on an lq9 with a stock intake and made 410 rwhp.. He did the tuning himself.
I'm making 455 rwhp with stock L92s milled .040..

Both on a mustang Dyno

On a larger then average cam....

WhiteChevy3 07-17-2013 10:33 AM

Sorry for the delay and thanks for the replys. This will be the route I go. I wil only have to switch my tbss intake out for the nnbs truck rrectangle port intake. I belive these intakes are the same thing only difference being the intake ports. Can someone confirm? ??
Thanks!


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