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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
0L iron GM blocks are bored and decked on our 4-axis which boasts a precision of 0
Fast™ LSXR & LSXRT
The increase in main journal diameter is key to the new power rating of 4
less sensitive to RF interference
The net result is a stronger
Dart SHP Iron Block (Small Block Chevy) Automatic 0L iron GM blocks areDesigned for high performance and heavy duty applications, the SHP block is the ideal starting point for hot rodders, drag racers, circle track competitors, off roaders and high performance marine enthusiasts. Features: Brand new precision machined cast iron block. Siamese bores 4. 000" or 4. 125" (unfinished). Standard or one piece rear main seals Extra thick decks ensure reliable head gasket seal. Blind head bolt holes don't go through to water