Quote:
why not use a 273 forged crank? they are already
set up for a lighter piston.
I have a 273 forged crank but they are not set up for light pistons. The small 273 piston is light but the piston pin is a huge hunk of steel. Ma Mopar used a Poly 318 crank to build the 273 but dident want to have to spend $$$ to rebalence it so they added weigh to the piston by making the pin so heavy, to equal a Poly 318's piston weight.
The block is a 78. Eagle SIR rods, not stock. We have done the drilling of the oil passages out, 1/2 inch for all the big ones to include the #5 main and oil pump, and 9/32 for the small ones from the mains to the lifter galery only. Will use a 8 qt pan with only 5 qts. Oil filter adapter PLATE has 4 more holes drilled inbetween. Windage tray with a small oil scraper. Oil cooler with 10 inch fan. Many more mods too. We were figuring around 450 HP. DaveJ
Retired, US ARMY 1973-1994
ASE mechanic, Electrical 1994-1997
Retired GTE/VERIZON/FRONTIER 1997-2015
Posting cheap tech help (CRAP) here since Nov 97, 1000's of posts, some may be good.
03 Suzuki Burgman 650(Burger King) Scooter
65 Formula S Cuda
78 Little Red Express Truck
98 Buick Regal (wifes car)
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