Dont need tolerances but I do have a question tht will require an opinion.
I have the opportunity to buy a new set of aluminum MP magnum heads with 1.92
intake and (I think)1.65 exhaust valves. The price is right (about $900 for
both heads complete with valves, springs, locks, retainers, seals) but I was
wondering how much of a performance increase I might expect. It doesnt seem
like the valve size is much bigger than stock.
If I'm not going to see any significant increase in output then I'll probably
just get my iron heads ported to 2.02 (although they say I'll lose some more
low end).
see below for my mods
John S
95 cc 318 auto, transgo shift kit, HE stage II TB and intake, HE 1418 cam,
1.6 Roller rockers, MSD digi6+, MSD HVC coil & 8.5 wires, Hp cap + rotor, MP
PCM, DT headers, Gibson exhaust (3" from headers back, no cat), 180 stat,
autolite 3923's, progear DR timing chain, auburn LSD, 4.10 gears, superior
axles, K&N X-stream filter system, MP valve covers, 24# FMS injectors, IAT
adjuster
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