Fits: 1973 & Up Poly Spool B/RB to 273/318 Swap Down Kit
Swap down from the original big block to small block. Easily replace your blown B/RB in an '73 & Up A,B,F,M,J-Body with a new or spare V8 without changing your K-member. Our kits allow you to directly bolt a 273, 318, 340, or 360 onto your original B or RB K-member with no additional fabrication. Kit includes powder-coated brackets, polyurethane spool inserts, grade 8 bolt package.