Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 392 trouble
Thread: 392 trouble
View Single Post
  #3 (permalink)  
Old 02-24-2012, 09:52 PM
Centerline Centerline is offline
Registered User
Last wiki edit: Mopar tapered axle rear brake conversion
Last journal entry: What I'm doing now...
Last photo:
Join Date: Jan 2002
Posts: 4,263
Wiki Edits: 49

Thanks: 0
Thanked 8 Times in 7 Posts
Jester is correct that early hemis had fairly radical valve train geometry and they need to be set right or won't perform. Valve float could be a problem if your running a high lift cam and using stock springs, especially if they're original to the engine. However, if your running any cam that has a higher lift than stock you need to run adjustable pushrods, otherwise your valve lash will be WAY off. Another thing to think about, 10:1 compression is on the ragged edge when it comes to pump gas. Try a 104 octane booster and see if that helps the pinging.


"The best car safety device is a rear-view mirror with a cop in it." - Dudley Moore
Reply With Quote