View Single Post
  #35  
Old 07-12-2019, 07:31 AM
Cliff R's Avatar
Cliff R Cliff R is offline
Ultimate Warrior
 
Join Date: Nov 2000
Location: Mount Vernon, Ohio 43050
Posts: 17,972
Default

The first 400 that was in my Ventura used the Crower 60240. Used the car back then to commute back and forth to work nearly 50 miles each way. Some city, a little steady cruising at 55, quite a bit of stop/start driving. I'd average about 15-17 depending on how many full throttle blasts I did with each tank. At that time the engine had 6X heads on it and backed by a TH400, stock converter and 2.73 gears. It ran 14.0-14.20's at the track right at 99-100mph and best ever 13.78 @ 101 mph in really good air, all runs on BF Goodrich Radial T/A's.

I've used the 60240 exclusively for all the later 400's we've done topped with 5C and 6X heads. I will say that as a replacement cam for those lower compression engines there isn't a better choice out there. I've had GOBS of those engines brought here for customer tuning, a few had the Summit 2800, 280, a couple with the 068, several used the XE262 and even a few folks had RAIV cams in them....yikes!. The XE262 cammed ones were pretty much "turds" far as I'm concerned. Lackluster power and quirky idle quality tops the list of what I found with them. The 2800 actually does pretty good, the 2801 is a slug off the line but comes on decent in the mid-range and finishes pretty good. The 60240 makes right at 12" vacuum at idle, strong power from about 2000 rpms to 5000rpms, with very strong mid-range power (for one of those low compression engines).

As for cam timing, like everything else with this hobby and engine building, it should be checked/degree'd when installed. Most Crower cams I've installed have required at least 2 degrees advance, the vast majority needed 4 degrees to get them where they needed to be........FWIW.......Cliff

__________________
If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),