The Stovebolt Site Forums The Shop Area The HiPo Shop flywheels

I have a 37 GMC, with a 250 from a 72 nova and a t5 from I don't know what mating these 2 things together is a bell housing from a 70 something Chevelle. Now for my question about flywheels are all the small block and newer 6 cylinders flywheels the same or what. I know about the differance in teeth and clutch size. I just need to know what flywheel to get

Thanks

i have switched several flywheels from v8s to inline 250s and 292s with no problem. i am not very familar with the v8 ones, but i think there are 2 main sizes for the inline sixes. i always use the large size on my 250s and 292s. the one in my 63 was the original one off the 327. it was the same size/ same teeth. there is a change in the flywheel to crank bolts size in the early 70's. if your flywheel has the larger holes i think you can get bushings to use smaller bolts but it's easier to just get the flywheel you need. i also have always used the heavier duty clutch and pressure plate. i bet someone will come along that knows more than i do. good luck, hr

Before you mix and match flywheels, you also should know if the engine is neutral balanced or externally balanced. I presume that the older engines were externally balanced at the flywheel.

All the flywheels interchange on 63 up 6 cyl & 85 on back v-8s. Do not use one from a 400 small block. The 292s had larger bolt holes after the first few years & sometimes were heavier but I dought if you will run into one of those. There are 2 diameters of flywheels & the large one often does not fit in the bellhousing for the small one. Make shure the parts match.