Double Tube Rear Bumper Tri-Mil The pistons were designed to

The pistons were designed to work with a 69mm stroke crank

Stock replacement Floor Tar Boards for insulation

and With Air

Prevents wheel hop and engine flex by supporting rear of engine

Accurately check critical deck height for appropriate valve clearance and compression

Double Tube Rear Bumper Tri-Mil The pistons were designed toFeatures the added protection and good looks of double 1 1 2" steel tubes. Fits all Type 1 except S B. Comes complete with hardware NOTE: This item is large and is only available as will call. It will need to be freight shipped which is not available at checkout. Please reach out if you would like a freight shipping quote.