NHRA Tech Department makes updates/corrections to the engine blueprint specifications

Jan. 3, 2023

The NHRA Technical Department recently made changes to the blueprint specifications.

                    Chev 1955 265 162 added intake casting numbers

                    Chev 1956 265 162-225 added intake casting numbers

                    Chev 1957 265 162 added intake casting numbers

                    Chev 1957 283 185-283 added intake casting numbers

                    Chev 14-15 427 450 added alternate throttle body

                    Chry 09-10 426 450 added alternate throttle body

                    Chry 2015 392 439 added alternate throttle body

                    Chry 2015 426 460 added alternate throttle body

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