MAIN BEARING CAPS
PGEM3840C2
Billet Speedworks Billet Main Bearing Caps 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. Part No. Description Caps
Block
Register
Chrysler Big Block 383-440 PGEM3840C2
Center Main Caps Front Main Caps Rear Main Caps
2-Bolt 2-Bolt 2-Bolt 2-Bolt
2-Bolt 2-Bolt 2-Bolt 2-Bolt
Stock Step Stock Step Stock Step Stock Step
PGEM3840F PGEM3840R PGEM3840C4
Cross Bolt Center Main Caps
CRANKSHAFTS
Chrysler Big Block 361-383-400 “B” Engine Eagle Forged Steel Crankshafts
“ESP” features SAE 4340 steel non-twist forging, multi-stage heat-treated, stress-relieved, .125" radii for use with narrowed bearings, chamfered oil holes, cross-drilled oiling, shot-peened, nitride hardened, X-rayed, magnafluxed, and sonic tested. Recommended for use up to 1500 HP.
Min. Rod Length Rod Pin
Rear Main Seal
Target Bobweight Grams
Approx. Wt. /Lbs.
Part No.
Description
Stroke 4.150"
Main
Balance
EAG440041506760
6-Bolt Flange
6.760" 2.375" 2.625"
2-Pc.
Int.
2550
70
Chrysler Big Block 413-440 RB Engine & 426 Hemi Eagle Forged Steel Crankshafts “ESP” features SAE 4340 steel non-twist forging, multi-stage heat-treated, stress-relieved, .125" radii for use with narrowed bearings, chamfered oil holes, cross-drilled oiling, shot-peened, nitride hardened, X-rayed, magnafluxed, and sonic tested. Recommended for use up to 1500 HP.
Min. Rod Length Rod Pin
Rear Main Seal
Target Bobweight Grams
Approx. Wt. /Lbs.
Part No.
Description
Stroke 3.750" 3.750" 4.150"
Main
Balance
EAG444037506760 EAG444237506760 EAG444041506760
6-Bolt Flange 8-Bolt Flange 6-Bolt Flange
6.760" 2.375" 2.750" 6.760" 2.375" 2.750" 6.760" 2.375" 2.750"
2-Pc. 2-Pc. 2-Pc.
Int. Int. Int.
2550 2550 2550
70-77 70-77 70-77
EAG444242507100 8-Bolt Flange w/Big Block Chevrolet Journal 4.250" EAG444243757100 8-Bolt Flange w/Big Block Chevrolet Journal 4.375" EAG444245007100 8-Bolt Flange w/Big Block Chevrolet Journal 4.500"
7.100" 2.200" 2.750"
2-Pc.
Int.
2500
70-77
7.100" 2.200" 2.750"
2-Pc.
Int.
2500
70-77
7.100" 2.200" 2.750"
2-Pc.
Int.
2500
70-77
Scat Pro Series features 4340 forged steel, heat-treated, nitride hardened, large fillet radii on all journals, lightening holes in the rod journals, straight shot and chamfered oil holes, precision ground and micro-polished.
Min. Rod Length Rod Pin
Rear Main Seal
Target Bobweight Grams
Approx. Wt. /Lbs.
Part No.
Description
Stroke
Main
Balance
SCA4-440-4150-6760-2374 Pro Series, 8-Bolt Flange 4.150" 6.760" 2.375" 2.750"
2-Pc.
Int.
2500
70-77
298 2021-22 ENGINE BUILDER CATALOG
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