With the Ford's tall deck...
With the Ford's tall deck and Livernois' choice of a short rod, the piston compression height was relatively tall at over 1.600 inches. Note the full skirt on the custom Bill Miller piston. Lateral gas ports were employed, and the pistons were fully coated.
Total Seal gapless top rings...
Total Seal gapless top rings handled the sealing of combustion gasses, while the Napier-faced second ring worked as an oil scraper. Both rings are 0.043 inches, while the oil control ring measures 3 mm.
A small-block Chevy sized...
A small-block Chevy sized piston pin joins the piston to the rod. The small end of the rod is not bushed, depending instead on a casidium coating to prevent galling.
Keeping parasitic losses to...
Keeping parasitic losses to a minimum, Livernois machined the oil pump housing and gears, reducing its pumping volume. The oil pressure was kept to a minimum.
Inside the crankcase, it's...
Inside the crankcase, it's easy to spot the cylinder bore sleeves. The sleeves project 0.500 inch below the original bores, providing extra support to the piston for improved ring stability and seal.
Reduced main journals ride...
Reduced main journals ride in 340 Mopar bearings, with bearing spacers fitted to the block to take up the difference.
Custom main bearing caps were...
Custom main bearing caps were machined by ProGram Engineering to accept the small-block Mopar main bearings in the Ford block.
A custom Moldex crank transforms...
A custom Moldex crank transforms the push of the pistons to useable power. The crank was fully profiled for minimum windage.
|Vital Specs: |
|Bore||4.300 in |
|Stroke||4.375 in |
|Displacement||509 ci |
|Compression Ratio||13:1 |
|Camshaft||Comp, solid roller |
|Cam Duration||258/263 degrees at 0.050 in tappet rise |
|Cam Lift||0.775 in |
|Rocker Ratio||1.8:1 |
|Lobe Separation||110-degrees |
|Installed Centerline||108-degrees |
|Top Ring||Total Seal, gapless, 0.043 in |
|Second Ring||SpeedPro, Taper Face, 0.043 in |
|Oil Ring||3mm |
|Piston||Bill Miller, dish, 0.927-in pin |
|Gas Ports||lateral |
|Quench Clearance||0.040 in |
|Block||factory production Crankshaft Moldex, billet |
|Rods||Leutz, 6.250 in |
|Main Journal||2.500 in, Mopar |
|Rod Journal||2.000 in, SBC |
|Cylinder Head||Ford Super Cobra Jet, ported |
|Intake valve diameter||2.300 inches |
|Exhaust valve diameter||1.900 inches |
|Intake Manifold||Edelbrock Victor, Ported |
|Carburetor||Holley 1250 Dominator |