Bore: 4.155
Stroke: 4.25
Rod: 6.7
Comp Height: 1.395
Head Type: Edel /Stock Iron
Head CC: 74
Dome Height: .1455
Dish/Dome: -25cc
Comp Ratio: 9.7:1
Pin Diameter: .990 x 2.500
Ring Thickness: 1.5 x 1.5 x 3.0mm
Valve Release Depths: .075 both
Engine Displacement: 461
Weight: 502
Type: Dish
Valve Relief: 2 SYM
Gas Port: no
Cylinders: 8

Bore: 4.155
Stroke: 3.75
Rod: 6.7
Comp Height: 1.63
Head Type: Ram Air III/ Edel
Head CC: 69
Dome Height: F.T.
Dish/Dome: -7.14cc
Comp Ratio: 10.1
Pin Diameter: .990 x 2.500
Ring Thickness: 1.5 x 1.5 x 3.0mm
Valve Release Depths: .250 both
Engine Displacement: 407
Weight: 532
Type: Flat Top
Valve Relief: 2 SYM
Gas Port: no
Cylinders: 8

Bore: 4.181
Stroke: 3.75
Rod: 6.7
Comp Height: 1.63
Head Type: Ram Air III/ Edel
Head CC: 69
Dome Height: F.T.
Dish/Dome: -7.14cc
Comp Ratio: 10.3
Pin Diameter: .990 x 2.500
Ring Thickness: 1.5 x 1.5 x 3.0mm
Valve Release Depths: .250 both
Engine Displacement: 412
Weight: 532
Type: Flat Top
Valve Relief: 2 SYM
Gas Port: no
Cylinders: 8

Bore: 4.155
Stroke: 4.25
Rod: 6.8
Comp Height: 1.295
Head Type: Edel /Stock Iron
Head CC: 72
Dome Height: F.T.
Dish/Dome: -9.04cc
Comp Ratio: 11.2
Pin Diameter: .990 x 2.500
Ring Thickness: 1.5 x 1.5 x 3.0mm
Valve Release Depths: .280 both
Engine Displacement: 461
Weight: 475
Type: Flat Top
Valve Relief: 2 SYM
Gas Port: no
Cylinders: 8

Bore: 4.181
Stroke: 4.25
Rod: 6.8
Comp Height: 1.295
Head Type: Edel /Stock Iron
Head CC: 72
Dome Height: F.T.
Dish/Dome: -9.04cc
Comp Ratio: 11.6
Pin Diameter: .990 x 2.500
Ring Thickness: 1.5 x 1.5 x 3.0mm
Valve Release Depths: .280 both
Engine Displacement: 467
Weight: 486
Type: Flat Top
Valve Relief: 2 SYM
Gas Port: no
Cylinders: 8