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NHRA Approved Small Block Chevy (SBC) Engine Blocks
All Classes Approved These engine blocks have been certified by the National Hot Rod Association to meet specific dimensional, material, and performance standards for use in NHRA-sanctioned events. These approvals ensure that the block will not cause disqualification due to non-compliance with NHRA rules.
BPP12110344
350 2-Piece Rear Main Seal
BPP12110353
350 1-Piece Rear Main Seal
BPP12110352
350 1-Piece Rear Main Seal
BPP12110347
350 2-Piece Rear Main Seal
BPP12110348
400 2-Piece Rear Main Seal
Stock, Super Stock, and Comp Class Approved
These engine blocks have been certified by the National Hot Rod Association to meet specific dimensional, material, and performance standards for use in NHRA-sanctioned events in the Stock, Super Stock, and Comp classes only. These approvals ensure that the block will not cause disqualification due to non-compliance with NHRA rules.
BPP12110343
400 2-Piece Rear Main Seal
BPP12110349
400 1-Piece Rear Main Seal
BPP12110362
400 1-Piece Rear Main Seal
BPP12110346
400 2-Piece Rear Main Seal
Keywords
NHRA SBC block, NHRA approved SBC block, Small Block Chevy NHRA block, BPP12110344, BPP12110353, BPP12110352, BPP12110347, BPP12110348, BPP12110343, BPP12110349, BPP12110362, BPP12110346, NHRA legal SBC block