LS6427

iTrader: (2)

So I'm looking for heads with a thick deck and the best flow I can get.......NOT 6 bolt heads. Just 4 bolt heads.

390ci.......I want the heads for when I do the Modular Turbo TT kit.

20psi is the plan.

Thanks.

(((Searching is like trying to find a needle in a haystack)))

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venom ws7

iTrader: (13)

I'm going with PRC 247 heads Thick Deck , Great price and will make a lot of power.
Of course of the money is not an issue check Mast too.

slowlsx

iTrader: (28)

What he said! If money is not an object tye mast small bores are pretty nasty! Not sure on the retail but im sure its over 4G's!

LS6427

iTrader: (2)

Will those heads be just fine for 20psi and a goal of around 1,100 RWHP....?

How much are they...?

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LS6427

iTrader: (2)

N/A I might go expensive MAST heads, but its boosted so no need for the best flowing big dollar heads.

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I8UR4RD

iTrader: (16)

went with PRC 237's for mine. .750 deck. 6 bolt for the ERL or LSX block ill be using in the future.

WheelsUp84z

iTrader: (14)

Mast or ALL PRO

venom ws7

iTrader: (13)

I'm Shooting for 1000+rwhp with the same heads.
I think it's somewhere between $2300-2400 if I'm not mistaken which is very nice for the option you're getting.

DEFYANT

Guys have made 1000+ with 317s, but I see where you're coming from. Look into the Mast Small Bore LS3 Heads, a set of 4.00" Bore AllPro -1 Heads, or have Chris Frank or RFD do some LSX-LS3 Castings for you. But seriously, there is no need for a high dollar head for your goals. IMHO it would be a waste of money on a 4-Bolt setup.

Blown06

iTrader: (32)

Edelbrock 245cc from WCCH. End of discussion lol.

Anchor

I went with the TFS LS 220 "As cast" heads. .750 deck thickness.
TFS-3061T002
$1800.

Been told I should be good for around 1300-1400 flywheel with the ls9 gaskets and 1/2" studs. Pending tune of course... Most of it is in the tune.

gnx7

iTrader: (28)

If $ is no object the MAST heads are nice. Otherwise call Richard at WCCH and have him spec you out some All Pro heads.

B(o)(o)sted98TA

iTrader: (3)

I wouldnt think youd need an expensive head like MAST or Allpro to reach your goal...
Im sure youd be fine with PRC or even TFS.

Trl_ws6

iTrader: (9)

Secont this all day long. Can not go wrong with these!

AES Racing

iTrader: (6)

We made over 1100 through a set of our 317's, on the "right next door to free" side. We have been super impressed with the Mast products looking at things on the other end of the spectrum.

I8UR4RD

iTrader: (16)

i agree with dude above. no need for those 6 bolts on a 4 bolt setup. but for future purposes and people like me who don't know when enough is enough and want to make 1300-1400 on a DD a 6 bolt block may be necessary for the longhaul and you will def be glad you already have the heads for it to make the hit less brutal. $0.02

Blackpanther99

iTrader: (8)

PRCs will get the job done any day without spending way too much. Shoot, even 317s will do a badass job as mentioned already.

25thhawk

iTrader: (3)

I bought a set of lsa heads. Even after porting, they will only be in the $1300-1500 range. Looking to put down about 1000rwhp with them

LS6427

iTrader: (2)

So what RWHP did it put down with the TFS LSX 220 heads....?

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Detoxx03

iTrader: (14)

The LSA's are a nice budget option but I'd opt for the Mast heads.