L98 Heads

[Kernal]

Will L98 heads fit onto an LS1?
Will i have any problems with LS1 headers fitting onto the L98 heads?
Will piston to valve clearance change?

and

Im guessing i would have to use a L98 intake manifold?

Anything else i have to take into consideration??

cheers

 

[soop]

If they're a cathedral port head I'm pretty sure they'll fit.
I've never tried but thats what I've been told.

 

[Kernal]

cathedral port head??? explain please

 

[soop]

Got me stuffed lol. I don't claim to be an expert on these things.

I've just been told that anything with a Cathedral port head will be interchangable.

I asked the same question last year.

 

[HRT 666]

No the l98 head will be no good on the 3.9" bore of the ls1 you need at least a 4" bore to use the l98.
Just get your 241 heads cnc ported and a set of stainless valves put in and double springs then port an ls6 intake if you cant afford something better.

 

[soop]

Do you have that Harrop intake manifold HRT?

 

[HRT 666]

^^ I had it on for a few months and then changed to LSXr102 set-up but they both work very well, Getting 350rwkws on E85 with stage 2 cnc 241 heads.

 

[soop]

Have you got any infor on the manifolds I could look at?

 

[HRT 666]

Yep try looking here.
Speed Inc - Pure Power
First go to "online parts warehouse"
then search catalog by manufacturer
select "FAST" from the list, then GET PARTS
The items you will need are
LSXr102 intake manifold part # FAST146302 price is 940 USD
Fuel rails part # FAST146032-KIT price is 187 USD
102mm t/body with TPS part # FAST54103 price 550 USD
Then you need the OTR Duspeed does a nice 102mm intake OTR that fits perfect. about $650.
Edit: Postage was about $170