64 SRT8 Dart
Well-Known Member
After reading some of the other threads about cam choices, etc and seeing all the talk about static compression and what cam should one need to help bleed off compression to prevent pre-det, I'm now questioning the cam I have for my 318 and can use a little advice.
Engine is 318 bored .030 honed with torque plate.
Align honed (due to no.3 main being spun).
Decked to zero to Fed Mog/Sterling Z285NP Cast Flat tops.
ARP main studs w/windage tray.
Rods rebushed, resized, ARP bolts
Cast crank turned .010 rods/ .030 mains, straightened.
Rot. assembly balanced.
Heads are smog 318 "973's" w/1.78" intake valve that are gasket matched and have a mild port job on both int and ex. I'm gonna say that chambers are stock cc so around 62cc I guess.
273 Adjustable Rockers.
Intake is a Performer 318/360.
Carb will be a Holley 650DP Spread bore w/1" spacer.
Exhaust is Hooker SuperComp 5208's.
Well if I use Summit's compression calc, it puts my compression at just below 10:1 with a .040 head gasket.
The cam I have now is the Crane Energizer .454/.454 216/216 @.050.
I live at around 6000ft above sea level if this helps.
I do have a set of 1.88" J heads but they would need $$$ work as in hardened seats, all new valves, etc. The 1.78" heads I have now already have hardened seats, new seals, good valves so that's why I plan on using them. Not to mention reading about port velocity, etc, etc.
Will be going in my 66 Valiant w/built 904 and planned on getting a converter with around 2000rpm stall if using this cam.
Will this cam be too small for the compression this engine will make??
Engine is 318 bored .030 honed with torque plate.
Align honed (due to no.3 main being spun).
Decked to zero to Fed Mog/Sterling Z285NP Cast Flat tops.
ARP main studs w/windage tray.
Rods rebushed, resized, ARP bolts
Cast crank turned .010 rods/ .030 mains, straightened.
Rot. assembly balanced.
Heads are smog 318 "973's" w/1.78" intake valve that are gasket matched and have a mild port job on both int and ex. I'm gonna say that chambers are stock cc so around 62cc I guess.
273 Adjustable Rockers.
Intake is a Performer 318/360.
Carb will be a Holley 650DP Spread bore w/1" spacer.
Exhaust is Hooker SuperComp 5208's.
Well if I use Summit's compression calc, it puts my compression at just below 10:1 with a .040 head gasket.
The cam I have now is the Crane Energizer .454/.454 216/216 @.050.
I live at around 6000ft above sea level if this helps.
I do have a set of 1.88" J heads but they would need $$$ work as in hardened seats, all new valves, etc. The 1.78" heads I have now already have hardened seats, new seals, good valves so that's why I plan on using them. Not to mention reading about port velocity, etc, etc.
Will be going in my 66 Valiant w/built 904 and planned on getting a converter with around 2000rpm stall if using this cam.
Will this cam be too small for the compression this engine will make??