I caved and decided to spend a little money and build a 418
- Same block, .040 overbore, torque plate honed, square decked .015 cut
- SCAT 3.98 crank, for 9.97:1 compression, .010 deck clearance, internally balanced
- Les Schmader is going to port the D2TE-AA heads, gasket match to 1247, 2.09/1.66 undercut stem valves, light retainers, 110 closed, 280 open, end stands, Viton seals. He says to expect 270 cfm
- Worked Edelbrock RPM intake (off my 489 from its pre-EFI days) and a 1 inch spacer blended to match the intake
- 750 Holley (although I may try my 1000 HP series vac sec off the Mustang for fun)
- Same 270H cam but straight up instead of 4 degrees advanced, hoping it'll make power to 5200
with the head work and good intake
- Hedman Headers
- Recurved Duraspark
- 3 inch mandrel bent duals with 50 series Deltaflows
The truck has 33 inch tall tires, a 4 speed, and 3.50s, it weighs 4100 lbs, thats why I stayed with the mild cam.
Should be a hell of a difference from the 8:1, Street Dominator unported combo it is replacing.
Although in its defense, that motor was sure an overachiever, it did everything well for years and ran hard even though it shouldn't have LOL
I built it in either 89 or 91, I cant remember and it was clean as a whistle, no blowby or ridge, bearings still look new, but it was 8:1 and .130 in the hole .....
Going in the 71, which is currently down to a bare frame getting some shiny back on it
