pHEnomIC

iTrader: (14)

Anyone have a ~400 ci with stock l92 heads and l76 intake, maybe a cam too? What power/torque did you make and do you have a dyno graph.

slowbrakiller

iTrader: (10)

i would like to see this as well....

WKMCD

iTrader: (2)

There's a tiny bit of information here:

https://ls1tech.com/forums/generatio...b-c-d-e-f.html

Jim85IROC

iTrader: (6)

I'm in the process of building a 402 with LS3 heads now. It'll have an LS3 intake, and I'm planning on running a cam similar to the Spinmonster cam, though I haven't really worked out my lsa decision yet. My expectation based on discussions with Spinmonster and others is that the motor should make roughly 525 RWHP with a good torque curve. Unfortunately, this is all speculation at this point, because the motor isn't complete yet.

mike c.

iTrader: (1)

I HAD a 402ci w/ported(not stock)l92 and l76. I made 517hp 470tq in a m6 car/12 bolt w/4.11's. I still have the 402ci,just switched to a vic jr set up.

pHEnomIC

iTrader: (14)

What kinda cam did you have and who ported them and to what extent?

mike c.

iTrader: (1)

custom cam from Pat G,and a local shop in the detroit area did several sets ti'll they found what works. then they ported mine. I'm removing them for the trick flow ls3 head when it comes out. I got 530hp with the vic jr set up(dyno sheet has been posted in the section)When i loose the low edelbrock elbow for the better flowing Aarons i'm told i should see another 20hp from those who tested it.

87silverbullet

iTrader: (11)

Is there any info out there about the TFS ls3 head? I havent been able to find any info such as deck thickness, runner volume and so forth.

smok'nZ

iTrader: (160)

pm brian tooley

mike c.

iTrader: (1)

I spoke with ed at tfs. He told me little. like they will be doing a different valve angle and will shrink the 2.16 down to a 2.10 valve. He says when done they will out flow and perform a ported l92 head or it's not worth building the heads. I hope they arrive soon,i want to be the first kid on the block to get them.

VIPER EATER

iTrader: (1)

i dont have any dyno runs with my set-up but i have a tsp 408 with STOCK ls3 heads and intake with a fast 92mm tb and the cam is a 235/240 .609/.603 on a 112 and we ran the car yesterday for the first time this year and with just a street tune it went a best of 11.78@114 and thats with a th400 and 3500 hughes and a 12 bolt with 4.10s