Which heads are best

[Badvette87]

Heads

Which heads and cam is best for my 1987 L98?
i wana run high 12s

 

[69MyWay]

Check with the nice folks at www.tpis.com Terry has been a big help to several of us here at the Action Center.

I am running Edelbrock 6089 (?) on my 90. I have yet to break the 12's, but I feel like a bad clutch allowing for nearly 3.0 second 60' times and still running 13.4 @ 106 means I am on the right track.

Another option is to have your heads reworked.

-=Jeff=- here is running solid 12's in his car. Maybe he will chime in with some other suggestions.

 

[Badvette87]

Which heads are best for my l98?
i need 58 cc combustion chambers

 

[-=Jeff=-]

Which heads are best for my l98?
i need 58 cc combustion chambers

Depends..

What are your goals? what other mods are you doing? Just changing heads won't do much unless you have other mods planned

 

[Badvette87]

i wana run mid 12s
my mods are:throttle body,runners,plenum,underdrivepulleys,msd ignition,1.6 roller rockers,crane powermax 284°/292º,no pre cats,flowmaster,k&n airfilter,chip,tci tranny

 

[-=Jeff=-]

i wana run mid 12s
my mods are:throttle body,runners,plenum,underdrivepulleys,msd ignition,1.6 roller rockers,crane powermax 284°/292º,no pre cats,flowmaster,k&n airfilter,chip,tci tranny

Those are your current mods?

If so, what size Throttle Body? which runners. What are the rest of the specs for the cam? lift, LSA, Duration at .050"?

I am running 12.74 with my Miniram, ZZ9 cam and CNC L98 heads

 

[Badvette87]

58mm throttle body,accel runners Duration @ .050: 222°/230 7deg Lobe Separation: 112° Gross Lift: .509''/.528''

 

[-=Jeff=-]

Most people suggest AFR 190 heads.. which are great and you can get them milled to 58cc before receiving them..

The other route is get a set of 113 casting L98 heads CNC'ed

I have also heard good things on Brodix heads and also Canfields

 

[Badvette87]

where can i buy the afr heads?

 

[-=Jeff=-]

where can i buy the afr heads?

www.airflowresearch.com