Engine Rebuilding By:

CLIFFORD PERFORMANCE INC.

CARLETON PLACE, ONTARIO

(613) 253-7880

(613) 799-7880

Block

• Block Casting Number 3179063 E G
• Bore 4.100
• Stroke 3.281
• Calculated cubic inch 346.54
• Block tanked, Magnaflux
• Align bored (corrected out .0005)
• Deck surface machined .015
• Cylinders checked and bored .020 (4.080 to 4.100)
• Valley drain back; machined for improved oil return
• Timing Chain - oiled holes, machined in front block valley
• Machined and installed rear-main bearing, oil feed line and to clear intake manifold
• Install updated front pump; high volume and angle oil filter adaptor
• Clevite cam bearings installed. Rotating Assembly
• Pistons - EGGE; obsolete engine parts 10.0:1 @ 51cc o Crank, stock. - .020 rods and mains polished
• Rods, stock. - resized with ARP bolts
• Speed Pro piston rings. Top ring, chrome moly
• Rear crank snout machined for torqueflite transmission - .0000 runout
• Assembly balanced with flywheel and harmonic balancer. Note: flywheel weight at flywheel must remain with any flywheel replacement - to maintain original external balance

Clearances

• Rods .002
• Mains .002
• Crank end play .0028
• Pistons .0015
• Rod side - cylinders:
  • # 1&2 .012
  • # 3&4 .014
  • # 5&6 .014
  • # 7&8 .011
• Piston rings ~ top ring .016 ~ 2nd ring .014 ~ oil ring .020
• Piston deck height -073
• Camshaft kit #10-204-4 magnum ~ Flat Tappet, gross value lift .490 - advertised duration 280° - 280° ~ 110° lobe separation - adv 4°
• Fel-Pro Gaskets - Perma Torque Head Gaskets Heads

Cylinder Heads

• Head #: 3188558.2
• Stock. Iron. Reconditioned, tanked, magnaflux
• Machined .008
• 3 angle original seat. Machined
• 1 piece, swirl polished stainless valves. Installed @ 108 lbs. pressure
• Intake valve 2.02, exhaust valve 1.60
• Valve gear converted to adjustable rockers with ARP studs
• Machine for positive seals
• Comp Cam Magnum roller rocker arms. Chrome Moly push rods @ 1.6:1
• Edelbrock RPM Air-Gap Intake Manifold.
• Edelbrock 750 CFM - jetted is recommended.

Recommendations

• Engine break-in, use Shell Rotella diesel oil 10W30 with Lucas additive. Estimated H/P - 325 - 350. (350 - 375 H/P with headers)