Jimmy P

iTrader: (177)

I picked up a set of 862 GTP stage 2 heads for one of my buddys. We are curious what these things flow? Anyone have any flow charts laying around? I know they are old heads, but the price was right and just want to get an idea of what type of flow these are capable off.
Anyone?

Darkman

iTrader: (2)

https://ls1tech.com/forums/generatio...ted-862-a.html

https://ls1tech.com/forums/tags/862.html

Jimmy P

iTrader: (177)

Thanks..Although I already did read that thread on the Stage 3 ported 862s..Mine are stage 2 heads, and anyways, those stage 3 heads look SUPER inflated..

I did a search but couldn't find any actual flow numbers.

Darkman

iTrader: (2)

The Stage 3 info was the only flow data I could find. I did find a lot of threads discussing the relative merits of the Stage 2 heads but they did not contain flow numbers.

DSRE

iTrader: (7)

old thread but if anyone else wants more info on Craig Gallant here you go
http://www.gtp-racing.com/headmaster.html

MavsFORMULA

iTrader: (4)

I have 2 flow sheets on my stage 2's. One is 278/210 and other is 280/212...

Edit: sorry, just realized the info was on LSx heads. GTP are about the best factory castings out there, def are for LTx. Those stg 3 numbers are pretty massive, not sure about inflation...

quiet_storm98

iTrader: (48)

I flowed a set of gtp 241s a while back, dont remember if they were stage 2 or 3 but they flowed right at 300cfm I will link the thread when I find it