LS 5.3L FT Forged Piston Set 3.780 Bore 500 in Thick Spacers -

500 in Thick Spacers - Steel - Zinc Oxide - Kit

25 in Mandrel - Bolt Included - Steel - Black Oxide - Moroso Mandrel Drive System - Small Block Chevy - Each

The cable harness has the proper connector so you can plug the 6M-2L into one of the Pro-Billet MSD Marine distributors

Coil Spring - Gold Series - Conventional - 5 in OD - 14 in Length - 125 lb/in Spring Rate - Rear - Steel - Gold Powder Coat - Each

the speaker and earmuffs come with adjustable shims

LS 5.3L FT Forged Piston Set 3.780 Bore 500 in Thick Spacers -Piston Premium Forged Forged Flat Top 3. 780 in Bore 1. 331 in Compression Height 1. 5 x 1. 5 x 3. 0 mm Ring Groove Minus 3. 00 cc GM LS Series Set of 8