Posted By: antonellomopar
help on a 440 build - 01/17/21 10:42 PM
I am putting together a 440 six pack to be mounted in my 71 Challenger 4 speed. I have started from a bare block, had some TRW 2295 pistons, a set of newly rebuilt 80 cc heads, six pack rods, balancer and flywheel, and a Comp Cam 274 cam. What kind of valve springs and pushrod shall I use? I don't have an idea about the valve springs already mounted in the heads, they were purchased many years ago off ebay. Also, shall I use 3/8 or 5/16 pushrods? Rocker arms are the stock units. I plan on using the original valve covers, if this matters.
Any suggestion about pushrods and valve springs. Living in Italy makes everything more difficult. Thank you for the help
Any suggestion about pushrods and valve springs. Living in Italy makes everything more difficult. Thank you for the help