Any 4 door sleepers?
Maybe cause I’m young and naive but a 273 in the 12s is very impressive to me, what’d you do to get into the 12s? Was it a commando 273?
Originally a stock two-barrel 273 which was upgraded as follows: Stock cylinder block bored .060 over (decked/deburred/painted inside and out), stock cylinder heads (gasket matched ports/blocked heat riser/resurfaced), stock intake and exhaust valves (polished/bronze valve guides), stock adjustable rockers, stock forged crankshaft (balanced rotating assembly/main and rod bearing oil clearances raised to .003"), stock full-floating connecting rods (polished, shot-peened, bolt upgrade/bronze bushings). Commando pistons (forged TRW with deeper valve reliefs for camshaft valve lift clearance), steel shim head gasket, Isky solid camshaft (312 advertised duration/.580 lift), Isky dual valve springs, Isky solid valve lifters, aluminum valve retainers, 600 CFM Holley DP on an Edelbrock 340 Tarantula intake manifold and velocity stack, Cyclone fenderwell headers (no extensions), fuel cool-can (used regular ice), Holley electric fuel pump with 1/2" aluminum fuel line, trunk-mounted battery, high-volume oil pump with modified stock oil pan (six quart) and Mopar windage tray. Super Stock leaf springs and SS rear shocks, pinion snubber, custom driveshaft (balanced and retained the factory style ball and trunnion front u-joint), driveshaft loop, scatter-shield with Hays clutch assembly and 30# steel flywheel, Hurst competition shifter, A-833 standard close ratio four-speed (blue-printed with full synchros), 4.56 sure-grip 8 3/4 rear end from '70 Dodge Challenger EBody, 10 inch M & H slicks inflated to 10 PSI (steel wheels with rim screws), front tires narrow Volkswagen Beetle 15" diameter. Mechanical oil pressure gauge, stock coolant and ammeter gauges, top of dash mounted 8,000 RPM electronic tachometer, and separate rev limiter. Launch RPM at starting line 6,000 RPM, shift points 6,000 RPM (full-power shifting), and trap speed 6,400 RPM (and still pulling strong). P.S. Stock radiator with "red" performance fiberglass cooling fan (these days such fans considered dangerous).
