01 blue ss

iTrader: (2)

I just got a short block off a member on here that was built for boost. It is a Iron truck block with a 4.00 bore so it is still a 364.

I also bought a sheetmetal intake from a member on here a long time ago that was built for LS3/L92 ports. I was thinking of using a set of the LS3 PRC heads since they are an aftermarket casting with a thicker deck compared to stock ls3 castings. The only question I have is, are these heads durable enough to withstand a decent amount of boost?

Has anybody used them in a boost application?

WKMCD

iTrader: (2)

I've never considered 25lbs of boost moderate.

01 blue ss

iTrader: (2)

It wouldn't be on 25 psi all the time. Only for certain kill situations

I consider 0-14 psi a street pump gas low boost situation, 15-25 psi a moderate boost race fuel/e85 street/strip situation and 25psi on up a serious race situation. I consider this with most motors in the 3xx cu in range because a 427 with 17 psi is a different ball game from 370 at 17psi.

I do know that a stock l92 casting won't hold 25psi at all.

01 blue ss

iTrader: (2)

I'm going to throw this in the FI section also.

Jason 98 TA

iTrader: (4)

they are definitely a very stout casting! With thicker decks & a overall thicker casting it's a great option for someone looking for better than stock castings.

01 blue ss

iTrader: (2)

I know its in the PRC LS3 head thread about what the deck thickness is but it would take me too long to find it so would you what the deck thickness Jason?

Sales4@Texas-Speed

iTrader: (4)

The deck thickness on our LS3 aftermarket head is 3/4".

01 blue ss

iTrader: (2)

Well it looks like I will be ordering a set from you shortly.

ducatisl

iTrader: (1)

Are these PRC castings 6-bolt?

01 blue ss

iTrader: (2)

Yes they are.

ducatisl

iTrader: (1)

6-bolt, thick deck, high velocity ports that outflow ported stockers...any links to dyno sheets or builds with track numbers?

01 blue ss

iTrader: (2)

The heads have just come out so I don't you are going to see any dyno or track numbers just yet. They are on TSP's website.

https://ls1tech.com/forums/generatio...available.html

https://ls1tech.com/forums/generatio...ak-inside.html

ducatisl

iTrader: (1)

Thanks, I hadn't been following this. Nice, and made in the USA as well.