CLASS RACER FORUM - View Single Post - Attn. racers running a 1955 Chevrolet in Stock.

Lyn Smith · 05-01-2022, 02:50 PM

Jim, the 56 is rated higher because the 55 is limited to the smaller wcfb carb, and the no valve relief pistons which really limits the duration the cam can have. The 56 cars can also run the 2 4bl engine as an option.

05-01-2022, 02:50 PM	#5
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,206 Likes: 288 Liked 986 Times in 198 Posts	Re: Attn. racers running a 1955 Chevrolet in Stock. Jim, the 56 is rated higher because the 55 is limited to the smaller wcfb carb, and the no valve relief pistons which really limits the duration the cam can have. The 56 cars can also run the 2 4bl engine as an option. Last edited by Lyn Smith; 05-01-2022 at 02:52 PM.