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 Many used engines instock, if you don't see it , ASK.

At 12Bolt, we try our best to offer the highest quality parts at affordable prices. You will not find hyped up, exaggerated claims about racing potential. You will find, real world, proven, tested parts. This is the place to find the Chevy 250-292 Inline 6 parts.

Oct 1, 2011. 12bolt is proud to offer the P.E.S product line! In the 70's, 80's and 90's and 2000's Clyde Norwood Owner of Precision Engine Service was a leader in inline race part development. Head development included the 1st bolt in lump kit. Later came the PES Ram intake manifold that proved itself to win many races.  

NEW PARTS ARE ADDED OFTEN! Look at the aluminum finned valve cover for Chevy inline 153  4cyl and 6 Cyl 194-230-250-292.
Also the 2 piece timing cover.

Bolt In Lump Kits
Performance Cylinder heads and Parts
Exhaust
Shortblocks
Pistons
Camshafts
Rods
Intakes
Accessories
Side covers
Valve Covers
Breather Adaptors
Engine Stand
Performance Dampers
Torque Plate
Distributor blueprinting
Frames
Rears
Axles
Bearings/ Kits
Yokes
Housings
Posi's
Used
Misc
Carburetors
Timing Covers
Turbo Manifold
4200 Inline