| Block |
1970 400 +.060; 2 bolt mains with stud kit |
| Bore/Stroke |
4.182" x 3.79" (417 cid) |
| Deck Height |
zero |
| Heads |
Edelbrock 72 cc, 2.11"/1.77"; SS valves street porting, head studs; all headwork by Jim Butler Performance |
| Valve Springs |
Butler |
| Retainers |
Butler |
| Keepers |
Butler, 10 degree |
| Seals |
Butler |
| Rocker Arms |
Butler 1.61 to 1 ratio roller rockers |
| Pushrods |
Comp Cams 9.35" x 5/16"; .080" wall |
| Lifters |
Ultradyne solid roller |
| Crankshaft |
Offset ground rod journals yield 3.79" stroke with 2.20" journal; mains 10/10 undercut |
| Balancer |
TCI Rattler |
| Piston Rods |
Eagle steel 3D 6.80" set up for 2.20" journals |
| Pistons |
Ross flat tops with single valve trough, 134 gram pins |
| Rings |
Total Seal Gapless |
| Main Bearings |
Clevite 77 (Clevite) |
| Rod Bearings |
Clevite 77 H series |
| Cam Bearings |
Clevite |
| Camshaft |
Ultradyne solid roller; 262/270 @ .050"; .599" lift with 1.61 rockers and .026"/.026" lash; degreed on 102 centerline (LSA is 108 degrees); valve timing 43 degrees btdc 72 abdc, 84 bbdc 39 atdc |
| Timing set |
Edelbrock double roller |
| Gaskets |
Butler's gasket set; Mr. Gasket #503 intake and #551 round port exhaust |
| Intake/Carb |
Edelbrock Performer RPM port matched to heads; 1.0" open spacer and BG Gold Claw 875 cfm carb |
| Fuel delivery |
Mallory 140 and 4 port regulator with return, set to 5.5 psi, #8 braided line for pick up and return lines; Fram HP cartidge fuel filter |
| Exhaust |
Hooker; 2" x 30" long primaries with 3.5" collector; 3" pipes into 3 chamber Flowmasters out 3" pipes |
| Ignition |
MSD 6AL, MSD crank trigger routed through a gutted GM HEI; Taylor wires and Autolite plugs |
| Oil Pump |
Melling 54D; 20-25 psi at idle 60-70 psi at speed |
| Oil |
Kendall GT1, 20w-50 |
| Transmission |
GER built THM 350; 10" 3800 stall converter; B&M Pro Ratchet shifter; TCI Automotive Flex Plate |
| Rear End/Gears |
GM 12 bolt with 4.11 gears and Eaton unit; Moser axles and cap girdle |
| Other |
All reciprocating parts balanced |
| Power |
Dynoed at 496 ft/lbs torque @ 4300; 519 hp @ 6300 |
| ET/speed |
Maiden voyage--1/8 mile track: 7.618 @ 92.26; 60' time of 1.758 seconds (ambient temperature 93 with 85% humidity).
First 1/4 mile run [92 degrees with high Florida humdity]: 11.629 @ 117.27 mph; 60' time of 1.702. |
