I'm looking for best crate sm block for a 90'GMC K1500 project?


Asked by Apr 16, 2015 at 03:31 PM about the 1990 GMC Sierra C/K 1500

Question type: Car Customization

my truck is a 1990 GMC k1500 will have a 4" lift 33" tires also truck has 5 speed manual trans.

1 Answer


ZZ4 sm block. The "D" super flow shaped ports are cool & state-of-the- art for the 90's.

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