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Old 01-07-2003, 02:01 PM
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Thumbs up will this combo work???

i have a chance to buy some heads ,they are said to have been modified by indy cylender heads,they are 65cc w/ 202 intakes my cousin ordered them from california at 2000.$ canadian.they have stainless steel valves bronze guides,ported and polished.
i plan to install them on a 1975 4 bolt corvette motor c/w flat top pistons,single plane alum. intake , holley 650 carb,443 lift cam and headers.
it has a 400 turbo transmission w/ shift kit .i believe it has 3/73 rear end(i think, or whatever came on a 75 vette.w/ 50 series tires.
can anyone give me an educated guess at h.p. and torque?? everything else is stock on the motor except the accell supercoil . is this a good set up for a sunday driver?? i have access to a 530 lift cam if this is better . any educated opinion would be greatly appreciated since all of my hot rod knowledge has been aquired since september..lol thanks
mike

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Old 01-07-2003, 06:40 PM
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the stock motor with the .447 cam and your new heads would be just like the old 350 hp 350, but the aftermarket heads will add at least 35 more hp. just make sure the port size is not too big, also that 530 cam will sound race, but if your going to drive this thing keep the duration under .230 @ .050, use high lift and keep your centerline as near 110-112 as possible. watch for valve clearance! anything more and its torque convertor change time.
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Old 01-07-2003, 10:00 PM
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the heads sound good but that cam is a bit week,
however that 530 lift cam is a BIT much I would go
with a 460 lift and a 234 duration @ 050 and a
2,200 rpm stall torque converter from summit performance. 202 valves are quite a bit for a small cam if you step it up a notch you will not regret it, good luck
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Old 01-08-2003, 03:19 AM
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thanks guys, i appreciate the imput. mike
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Old 01-08-2003, 11:00 AM
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a pair of stage 2 bowtie heads are 600US, i would go for bowties and spend the extra cash on upgradeing to hydraulic or mechannical roller cam and j&e pistons...
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