yumm... 340!
When I bought the motor for my challenger, I was told it was an externally balanced 340. Turned out to be a 360. No problem though since I only spent $200 for the motor and tranny.
I lightened the rods and pistons, balanced it out, put floating 340 style pins in it, 9.5:1 CR, 340 windage tray, HV oil pump, left the 360 heads stock(next thing to be changed!) Eddy Performer RPM intake, lifter valley baffle,
Hughes 2430 Hyd cam(272/276 adv. dur. 224/230 Dur @ .050, .510 lift, 110 LSA) Tuned Chrysler Electronic ignition, Holley 670 Street Avenger, Hooker Super Comp 1 3/4 headers, 2.5 inch exhaust w/ X pipe, Dynomak turbos and Dynomax bullets(sleeper quiet.)
w/ a built 727(Hughes 3000 Stall verter, Transgo II kit, Hemi Kickdown, Max Wedge governor) and 3.91 Sure Grip rear.
It'll run consitent 13.70s at the track on street tires! The fastest I've gone was a 13.52 on Slicks, but I don't run on slicks that often.
I think I'll swap some ported 340 heads onto it later, but I got to do some building on my Blazer first!
I do have a 383 sat aside in the work shop for her though!
now id never kill a chevy muscle car with a Mopar motor. Someday I want a Chevelle with a 454 and Charger or Challenger with a 440 or hemi repectivly, a Hemi Cuda would be nice to...but now im dreaming again lol
