What is the intake runner cc of stock L98 heads? Thanks! ------------------ '83 Firebird 2.8 '89 Firebird Formula 350 2nd owner, red/grey, t-tops, dual cats, and a 3.27:1 rear K&N, TB bypass, No MAF screens, CAI, full Accel ignition

Cast 64 and Al 58 I THINK not sure

On the aluminum version,
the Intake Volume is 163cc,
Combustion Chamber Volume is 58cc

Sorry can't speak to the cast iron version

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Black Sapphire, Saddle, L98, 700R4, Dana44 w/3.31, JET Stage II chip, SLP RamAir, Airfoil & Runners, Ported Plenum, 1.6 Crane Roller Rockers, AFPR, TB Coolant Bypass, MAT sensor relocation, MAF screens removed, K&N Filter, Hypertech Coil, Accel Ignition Module & 8.8mm Wires, Hughes 10" 3000 RPM Converter, B&M Shiftkit+, Z51 PS Cooler as Aux Trans Fluid Cooler, TCC Lock-up Switch, Trans Temp sensor switch, Coolant Fans Manual Override, Low Temp Aux Fan Switch, Offroad Front Y pipe, Highflow Cat, Dynomax Catback, plus lots of TLC

Soon to come... Heads(AFR), Manifold(Accel) and Cam(ZZ4)

I was thinking of somehting else sorry

stock iron 5.7 heads have 155cc runners

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1991 banditt2 #130 of 600 http://clubs.yahoo.com/clubs/streetdawgracing http://y42.photos.yahoo.com/tonysams72. http:/discussion-board.com/GreaterCincinnatiFBodyAssociation