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Old 12-02-2006, 10:06 PM
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Building a blown 468 bbc [ questions]

I am building a BBC Blower motor for my Anglia , I had the block bored 60 over making it a 468 ci, with flat top 8.5 CR forged pistons,, I am trying to narrow the choice of cams down,, and have been considering the Comp cams nitrus HP cams,,[ Full Roller hydraulic ] there are a couple of different grinds available, # 1 is the Part # CCA-11-414-8 with a intake duration of 242 and ex duration of 254, at .50 and lift of intake 566 int.575 ex.rpm range from 2400 to 6500 and #2 comp ,#CCA-11-411-8 duration int. 279 ex dur 294 lift int.537 ex 541, perf. range is 2000 to 6500 rpm,,,, both have a 113* lobe sep. just 400 RPM differance on performance rpm,, maybe someone has a better ideaa for a cam,, I would prefer it be a roller,,,
So what do some of you engine builders think would be best for street duty,, with maybe a blast on the strip ocasionally,, the car will probably weigh around 2000 #??? the blower is a B&M 425 mega charger,, with probably 6--9 # boost ,,, The heads are REC port open chamber cast iron, GM,, and the valves will all be new ,, with normal porting ANY IDEAS??? Thanks BILL

Last edited by Bad Rat; 12-02-2006 at 10:12 PM.
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