430 hp 70

iTrader: (3)

any engraving or etching of a logo on the front of the heads or are they blank? i see there is a cast ls7 and prc marking, but just wondering about the fronts.

DietCoke

iTrader: (18)

They are blank.

82cetuner

iTrader: (9)

hey Texas speed, could you guys tell me what gains over the ls3 cnc ported heads would be?

I have a set of your cnc ported ls3s on a 418 and just wondering what kind of rear wheel hp gains I might especially threw the curve, they look like they make great low end numbers as well.

im just trying to merit the cost Im sure I can use my ls3 rockers and trunion upgrade and sell the ls3 heads and recoup some money.

I would love to see some back to back dynos on the same engine if you have one.

402s and 418s seem to be your most common sellers you guys really should do some back to back dyno tests . its a little hard to want to spend 3k on heads when i already have a good set of ls3s

DietCoke

iTrader: (18)

You cant use ls3 rockers or intake, it's all ls7 hardware

Jimbo1367

You are beating a dead horse asking for a back to back 416-418 head swap dyno pulls. MANY,MANY,Many people have asked for it. But for whatever reason, TSP just don't plan on such a dyno challenge. I personally think it would sell alot of heads **IF** it makes a moderate to big performance difference. JMHO

RENE'S RAGE

iTrader: (96)

Any updates, anybody have these heads?

dasorcha21

iTrader: (6)

pretty sure DietCoke already has them on his build and running... i ordered a set and should have them next month.. not sure who else.

here is diet coke's build thread.
http://www.camaro5.com/forums/showth...47#post3721147

DietCoke

iTrader: (18)

Yep, they're on my new motor. Look super nice.

http://www.youtube.com/watch?v=olFZM7L5bec

Jimbo1367

Dietcoke,
I just read your build thread. All I can say is...... WOW. Most people won't be able to use your build to gauge PRCs LS7 small bore heads as most people will run a FAST102 and not a Beck manifold. SHOWOFF !!!


LOL. Great build.

DietCoke

iTrader: (18)

When holley releases their hi-ram for the ls7 I'll probably switch to that and a 105mm tb and sell the beck/92mm. Sure looks purdy though

obZidian

iTrader: (2)

Would like to see these heads on a pump gas, FAST build.

formula17

iTrader: (4)

Why are these heads still not listed on TSP's website??

Jimbo1367

Ya got me. I thought the same thing. I would of thought they (TSP) would of listed it as small bore LS7 heads instead (or also) of the 250cc LS3 heads on their homepage.

DietCoke

iTrader: (18)

They are listed. They're the 265cc ls7x heads.

Jimbo1367

I take it they list the same PN as your invoice?

formula17

iTrader: (4)

You would think somewhere in the description it would mention they are the small bore version, Or mention what bore size they fit..... Diet coke nice build and great numbers so far.

offaxis

iTrader: (19)

I think they are really med bore heads.

DietCoke

iTrader: (18)

sure is. they'll fit a 4.065 or bigger

lt1773

iTrader: (1)

any result ??

v8pwr

iTrader: (19)

Those are awesome results! I want these for my 416 and TSP needs to offer a sale to get some of these on the street. My build would be complimented well with these. I think they would very good power with the stock intake.