My 351C suffers under the hood of my Mach1. I havent been able to drive it much except short tests around the block. It overheats and lacks power. I also having a ticking sound of either valve, lifter or detonation. I cant say which.
I got a Robert Shaw thermostat and restrictor is in block, headgaskets are checked and double-checked during assembly. New 24" radiator w pulling flexfan, and pushing 16" flex-a-lite electric cant keep it cool. I thought heating problems would go away when i got the new radiator and pushing fan. But not.
I then started thinking about detonation as a possibility, since it makes some kind of ticking noise under the valvecovers. Im running a XE274H on a 10.8:1 4V CC. Cranking pressure is 210 PSI, running on 98 European gas. Block is zero-decked, flattop kb177s, chambers measured in at 62.3 cc. Too much pressure?
I took timing down from 18 initial and are now at around 14-16 but same story and it idles worse. Next move was to loosen preload on the lifters but i got here before reading threads about high compression/detonation and wrote this thread.
What do you guys think. My setup a recipe for detonation and i need another cam or any other suggestions?