Page 5 - 2021-22_EngineCatalogAP

Billet main caps offer increased bottom end strength. Many of the billet caps listed are for converting a two-bolt main block to the more durable four-bolt main configuration.
MAIN BEARING CAPS
Billet Speedworks Billet
Main Bearing Caps
Part No.
Description
Caps
Block
Register
PGEAMC401CSA
401 V8 Splayed Center Main Caps
4-Bolt
2-Bolt
Stock Step
OEM REPLACEMENT BEARINGS
290-401 V8
232 L6 Cylinder
360 V8
FORGED PISTONS
ROCKER ARMS
Description
Clevite
KING Alecular SI Series
Dura-Bond
Rod Bearings, 290-360
M77CB960A
KEBCR818SI010
—
Rod Bearings, 390-401
M77CB819P10
—
—
Main Bearings
M77MS1041P
—
—
Cam Bearings
M77SH671S
KEBCS526BB
DURN-9
Description
Dura-Bond
Cam Bearings
DURN-7
Part No.
Description
Stroke
Rod Length
Comp. Height
Wrist Pin Type
Comp. Ratio
Cubic Inch
Ring Package
4.110" Bore - Flat Top - Piston Kit With Rings
WPTPTS539A3
2 Reliefs, -8.6cc
3.440"
5.875"
1.590"
P/F
10.5 @ 58cc
365
5/64", 5/64", 3/16"
304-401 V8
Part No.
Description
Stud
Ratio
Qty.
Comp Cams
COM1210-16
High Energy, 1974-79 Only, Pedestal Mount
N/A
1.6
16
2021-22 ENGINE BUILDER CATALOG 3
AMC /JEEP 290-401 V8, 2.5L L4 & 4.0/4.2L I6