Jan. 18, 2022

The NHRA Technical Department recently made changes to the Class Guide.

Chev 396 325/358 change to 396 325/355 65-68 Full Size SS manual

Chev 396 325/368 change to 396 325/365 65-68 Full Size SS manual

Chev  396 325/363 change to 396 325/355 1965 SS/GT manual

Chev  396 325/373 change to 396 325/365 1965 SS/GT manual

Chev 396 325/335 change to 396 325/368 1967 Full Size SS auto

Chev 396 325-360/358 change to 396 325-360/355 66-69 Chevelle SS manual

Chev 396 325-360/368 change to 396 325-360/365 66-69 Chevelle SS manual

Chev 396 350/355 change to 396 325/358 1967 Chevelle SS auto

Chev 396 350/365 change to 396 325/368 1967 Chevelle SS auto

Chev 396 325/363 change to 396 325/360 1967 Camaro SS manual

Chev 396 325/368 change to 396 325/370 1967 Camaro SS manual

Chev  396 325/368 change to 396 325/373 1967 Camaro SS auto

Chev 396 350/369 change to 396 350/363 68-69 Nova SS manual

Chev 396 350/379 change to 396 350/373 68-69 Nova SS manual

Chev 396 325/374 change to 396 325/360 68-69 Camaro SS manual

Chev 396 325/384 change to 396 325/370 68-69 Camaro SS manual

Chev  396 325-360/363 change to 396 325-360/355 66-69 SS/GT manual

Chev  396 325-360/373 change to 396 325-360/365 66-69 SS/GT manual

Mopar 318 230 removed LA replacement heads 64-66 Stock

Mopar Poly/LA engine added replacement heads 60-63 SS

Mopar corrected replacement heads for LA engine 64-69