Thread: 400/406 Builds
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Old 01-16-2014, 01:02 AM   #6
Captainfab
60-66 Nut

 
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
Re: 400/406 Builds

That does sound like a good torquey engine burnin oil

Quote:
Originally Posted by burnin oil View Post
That 465/203 setup is rare. I am really surprised that The tcase chain didn't let go first.

When I was in high school I had a 30 over 400 with flat tops and 76cc heads that were decent. The cam was a 300HP 350 repop. Idle quality was awesome and would idle at 400 RPM off roading. Motor made enough to peel the floor open around the shifter for the trans. Looked like you took a tooth paste tube key to it on both sides. I never knew hoe the Bell housing didn't let go. The 10.5" wide tires left 3" wide black marks and got 14MPG with 3.07 gears. Intake was a Performer and ran through stock dual factory log manifolds that would twist 6000 RPM.


That combo sounds like a screamer Campbel45. If you haven't bought the heads, I would suggest a little smaller intake port. Maybe around 190-195cc? Please do keep us informed when you get'r runnin.

Quote:
Originally Posted by Campbel45 View Post
I'm still in the process of building my 408

Specs are:

sbc 509 400 .040 over

Scat internally balanced rotating assembly
-Scat crank
-KB 18cc dished pistons
-Scat 6" rods (7/16 cap screw)
-Comp Cam XE274
-Dart pro 1 215s 64cc
-0.027 head gasket
-Decked .020
-comp cams gold roller rockers
-Eddy performer rpm intake
-holley 750 vacuum advance
-MSD HEI

SCR: 10:1
DCR: 7.93:1

Have yet to complete it so I cant say what its like or numbers but I'll be sure to let you guys know!
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Last edited by Captainfab; 01-16-2014 at 01:08 AM.
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