Availability
Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit
Part Number: MIL-81135
Not Yet Reviewed
Estimated Ship Date: Feb 2, 2026 if ordered today
Estimated Ship Date: Feb 2, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
EX.PLUG-BRASS-DEEP CUP-1-5/8
Part Number: MAH-2198041
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Engine Expansion Plug, Steel, AMC, Buick, Cadillac, Chevy, Ford, GMC, Jeep, Mercury, Oldsmobile, Each
Part Number: RNB-555-028-1
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
Engine Cylinder Head Dowel Pin, Engine Cylinder Head Dowel Pin, PIN-CYL HD DOWL
Part Number: ADO-14024244
Not Yet Reviewed
Estimated Ship Date: Dec 3, 2025 if ordered today
Estimated Ship Date: Dec 3, 2025 if ordered today
Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit
Part Number: EW1-350LRMSA
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
INSTALLATION KIT
Part Number: BRO-SKBLOCKBBCI
Not Yet Reviewed
Estimated Ship Date: Nov 12, 2025 if ordered today
Estimated Ship Date: Nov 12, 2025 if ordered today
Expansion Plugs, Steel, Diameter 2.105 in., GM, Set of 10
Part Number: RNB-555-085
Not Yet Reviewed
Estimated Ship Date: Tomorrow if ordered today
Estimated Ship Date: Tomorrow if ordered today
Main Bolt Kit
Part Number: PIO-855201
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
AN Block Adapters, -16 AN Adapters, Clear Anodized, Chevy, Big Block, Kit
Part Number: PGP-PRP-6861
Not Yet Reviewed
Estimated Ship Date: Nov 28, 2025 if ordered today
Estimated Ship Date: Nov 28, 2025 if ordered today
AN Block Adapters, -12 AN Adapters, Clear Anodized, Chevy, Big Block, Kit
Part Number: PGP-PRP-6860
Not Yet Reviewed
Estimated Ship Date: Nov 28, 2025 if ordered today
Estimated Ship Date: Nov 28, 2025 if ordered today
Main Cap Fastener, Bolt, Little M Sportsman, Chevy, Each
Part Number: DRT-66722687
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Expansion Plug, Brass, 1.625 in. O.D., Each
Part Number: NAL-94673017
Not Yet Reviewed
Estimated Ship Date: Mar 3, 2026 if ordered today
Estimated Ship Date: Mar 3, 2026 if ordered today
Brass Cup Expansion, Plug, 35.21mm Outside Diameter, Each
Part Number: RNB-565-093
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
Main Cap Fasteners, ACDelco GM Genuine Parts Multi-Purpose Bolts, 7/16-14 Threads, Cadillac, Chevy, GMC, Olds, Pontiac, Each
Part Number: ADO-12561388
Not Yet Reviewed
Expansion Plugs, Steel, Diameter 1.959 in., Various, Each
Part Number: RNB-555-041
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
Freeze Plug Kits Bagged - Brass
Part Number: MEL-MPE-163BR
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Freeze Plug Kits Bagged- Steel
Part Number: MEL-MPE-262R
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Freeze Plug Kits Bagged- Steel
Part Number: MEL-MPE-124R
Not Yet Reviewed
Estimated Ship Date: Dec 1, 2025 if ordered today
Estimated Ship Date: Dec 1, 2025 if ordered today
Main Bolt, 4-Bolt Main, Standard Hex Head, 1/2 in. Thread, 2.750 in. UHL, Each
Part Number: DRT-66732750
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
MAIN GIRDLE, BILLET STEEL, CHEV 454, incl PRW fasteners & hdwe
Part Number: PQX-9045400
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit
Part Number: MIL-81137
Estimated Ship Date: Today
Estimated Ship Date: Today
Lifter Bushing, 1.062 in. O.D., 0.936 in. I.D., 1.990 in. Length, Bronze, Keyway, Chevy, Set of 16
Part Number: ISK-KLB936
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Four Bolt Main Cap Kit
Part Number: PIO-839022
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
cylinder head dowel pin
Part Number: PIO-839006
Not Yet Reviewed
Estimated Ship Date: Nov 24, 2025 if ordered today
Estimated Ship Date: Nov 24, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.