what is this knocking noise? - 350 SBC
#1
what is this knocking noise? - 350 SBC
My buddy has this SBC 350 in his 1975 van C20 3/4t. The engine starts, idles and runs fine, but it has a nasty knocking sound under heavy load/acceleration. Compression was 110-115# in 6 or 8 cyl, (couldn't access the last 2 due to header placement). I need some ideas. Any questions or suggestions would be greatly appreciated.
Last edited by Ghostbuster; October 28th, 2018 at 8:40 PM.