Little ''M'' Block with Steel Main Caps
Little M Engine Block Small Block Chevy 9.025 in. Deck Height 4.000 in. Cylinder Bore 350 Main Bearings Steel Main Caps Sold Individually

4.595 in. Cylinder Bore
Merlin IV Cast Iron Engine Block Big Block Chevy 2-Piece Rear Main Seal 4.595" Bore 10.200" "Tall" Deck Height Standard BBC Camshaft Bearing Journal Standard BBC Lifter Bore Billet Steel Main Caps

3/32" Wall Thickness
Cylinder Sleeve Bore: 2.9530" Length: 4-7/8" Wall Thickness: 3/32"

3/32" Wall Thickness
Cylinder Sleeve Bore: 4.4000" Length: 8-1/2" Wall Thickness: 3/32"

Tall Deck
Bow Tie Race Engine Block Big Block Chevy (2-Piece Rear Main Seal) Tall Deck: 10.200''

3/32" Wall Thickness
Cylinder Sleeve Bore: 3.5000" Length: 9-1/4" Wall Thickness: 3/32"

Small Block Chevy
High Performance Main Caps Small Block Chevy 4-Bolt Main Dart SHP Iron Block

Cam Plug Rear of Block Small Block Chevy Ford Windsor

Standard Deck
Bow Tie Sportsman Engine Block Big Block Chevy (1-Piece Rear Main Seal) Standard Deck: 9.800'' 4.494'' Finish Bore (4.600'' Maximum)

3/32" Wall Thickness
Cylinder Sleeve Bore: 4.5000" Length: 7-3/8" Wall Thickness: 3/32"

4.495 in. Bore
Merlin Cast Iron Engine Bare Block Big Block Chevy Gen VI 1-Piece Rear Main Seal 4.495 in. Bore 9.800 in. Deck Height Standard Cam Journal Nodular Iron Splayed Main Caps

Nissan/Datsun
Main Stud Kit for Nissan/Datsun 2.0L (SR20DE/DET), 2-Bolt Main

1/8" Wall Thickness
Cylinder Sleeve Bore: 2.6250" Length: 8-1/4" Wall Thickness: 1/8"