PISTON PIN LOCKS
Piston Pin (Spiral) Locks Part No.
Qty.
.990" x .042"
WISCS-25
JEP990-042-CS
1 4
JEP990-042-CS
WISCS-25
ROTATING ASSEMBLIES
Street & Strip Assemblies with Cast Crankshaft Unbalanced Assemblies
For applications up to 500 horsepower. Recommended for use in pump gas, street engines. No power adders. Kit includes cast steel crankshaft (use 2-piece rear main
seal), bushed H-Beam connecting rods, KB Hypereutectic, SRP, or Mahle 4032 forged pis- tons, Perfect Circle rings, and Clevite 77 rod and main bearings. Each kit part number is specified by bore size. Flexplate/flywheel and balancer not included. Requires balancing at a professional machine shop. Eagle Specialty products reserves the right to substitute parts due to availability. Oldsmobile 455 Kit includes "ESP" H-Beam 3-D connecting rods. Compression ratios are based on a 77cc combustion chamber. Requires balancing.
Cubic Inch 488 495
Bore Size
Rod Length 7.100" 7.100"
Balance Needed
Piston Type
Piston Rings
Comp. Ratio/77cc
Part No.
Stroke 4.500" 4.500"
EAG42105030 EAG42105060
4.155" 4.185"
Ext. Ext.
4032 Mahle/Inv. Dome -22cc 4032 Mahle/Inv. Dome -22cc
File-Fit File-Fit
10.0:1 10.0:1
CYLINDER HEADS
Aluminum Cylinder Head Affordable aluminum cylinder head, engineered for Olds 400-455 engines, delivers improved flow and performance. Designed for applications with up to .615" valve lift, heads are assembled with 2.072" intake and 1.680" exhaust valves, dual valve springs, chrome-moly steel retainers, and 10° valve locks. Requires 3/8" rocker studs and roller rocker arms.
Intake Runner 188cc
Comb. Chamber
Valve Angle
Intake Valve
Exhaust Valve 1.680"
Part No.
Description
Assembled, 1.45" Springs, Hydraulic Flat Tappet, 140 lb. Seat Pressure, .615" Max Lift
SPMPCE281.2152
77cc
18°
2.072"
464 2021-22 ENGINE BUILDER CATALOG
Made with FlippingBook flipbook maker