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Old 03-13-2008, 05:41 AM
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1 Bad Mirada
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Default RE: Engine Build Up

youre running a small block? interesting.

with the mirada, im running a 69 340, 30 over, stock stroke (right now). bg 750 with 800 cfm proform carb, air gap with the 528/284 cam, 1988 360 heads, ported and polished, 1.88/1.60 valves, 1.5 ratio roller rockers, solid lifters. 100 thousandths dish pistons, 9 to 1 compression with the heads shaved. running only 87 octane, it ran 12.30s-12.40s, track weight of 3700lbs.

the demon is going to be a 1975 360 (dont tell anyone ), stock bore and stroke. 750 holley, ld340 with the 509/292 cam, 1973 340 heads, 1.88/1.60, stock 273 adjustable rockers, solid lifters. stock pistons and everything else on the bottom end. stock it was 8.4 to 1, but the heads that im running are shaved and im running the extra thin head gaskets, so the compression should be similar to the mirada. the demon is a total budget build. the most expensive thing we have bought so far was the OEM wiring harness.
im not sure on the weight yet, but its got a fiberglass front end, clean trunk, lightweight interior...so it may be several hundred pounds lighter than the mirada. i believe that the stock demon 340 weight was around 3300lbs(ive seen numbers that vary from 3250-3350), so it could be under 3000lbs. that would be awesome...real awesome. we still havent thrown out the idea of the mirada drivetrain in the demon. figure, the 3700lb mirada went 12.30s, and the demon might weigh 800lbs less? mid 11s would be nice...
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