GM Marine Long Block Engines - Big Block V8 Products New 1991-Up GM 7.4L Carb Or MPI Big Block #454M $9,899.00 New 1990-2002 8.2L “502” Engine #5026-TX $9,100.00 New 1987-'02 GM 7.4L High Performance Big Block #454R $8,499.00
