mitchntx

iTrader: (14)

I have a '98 TA and am considering the 5.3 Stage 2 heads.

I notice they are offered in both centerbolt and perimeter bolt patterns.

Is a 5.3 perimeter bolt the same as my 5.7? I find it hard to believe GM would make multiple versions, but just making sure ...

jrp

iTrader: (16)

you sure the 5.3's are available in perimeter bolt :think:. my understanding is all the 99+ heads were center bolt and coil pack bracket setups.

only the 806 castings are perimeter bolt.

BigTex

iTrader: (16)

I think the only perimeter bolt head that GM has made is the 97-98 LS1 head. All truck heads are center bolt heads.

mitchntx

iTrader: (14)

http://www.patriot-performance.com/LS_Series.htm

jrp

iTrader: (16)

news to me :shrug:, everyone i know who has the 5.3's had to go with the center bolt covers.

Demon SS

iTrader: (3)

the truck heads don't come in a perimeter bolt pattern style to my knowledge

mitchntx

iTrader: (14)

Guess we'll get the straight skinny tomorrow when I call

TVWilkes

The truck heads are center bolt only.The website will need to be changed.The perimeter bolt stage 2 heads are on special for $995.00 a pair.

jrp

iTrader: (16)

holy crap, if i had the money i'd be all over that

mitchntx

iTrader: (14)

Cool ..

What kind of lead time on those heads?
Any options on combustion chamber CC?

TVWilkes

It will be there when you do.Thats is an everyday price.

I currently have 225 pairs of the 98 perimeter bolt heads.

DrkPhx

iTrader: (15)

Terry- Is that the price for the bare casting or assembled?

TVWilkes

That price is assembled,using the Patriot Gold Dual Springs,Titanium Retainers,Stainless Steel valves.

gomer

iTrader: (13)

Holy ****! I guess there are some advantages to having a 98 after all.

foff667

iTrader: (2)

damn terry why you gotta do that to me...i was just planning on doing a cam and now and go and drop your price by $300 what gives lol...thats a great deal man lets see id save myself a couple hundred on springs, locks and retainers so id just need hardened pushrods...man your killin me!!!argh and right at christmas when you know i just upped my debt 100% lol.

TVWilkes

The $995.00 price is only for the 98 perimeter bolt heads.All of the centerbolt heads are still $1295.00.

foff667

iTrader: (2)

works for me since ive got a 98 lol

JakeL

Thought I'd re-ask this one, since I'm curious as well. Sounds like lead time is approximately zero, since you've got so many, but since they're LS1 heads, can they be milled a bit to raise the compression?

I guess that means I need to read up on the importance of milling heads, and the ramifications

-Jake

TVWilkes

Yes,they can be milled to rasie the compression ratio.

JakeL

Thanks Terry. I'll go through the archives and educate myself a bit on the implications of milling, but can you give me a rough ballpark of what ratio can be acquired through milling? Or is the cam so highly dependent (due to lift + overlap?) that's it tough to really say?

Can you estimate a ballpark with the XE-R 224 that TSP sells (.581 lift)?

Happy Holidays,

-Jake