How big are the bellhousing holes on a Chevy truck?
How big are the bellhousing holes on a Chevy truck?
Four primary locating bore diameters were used in the standard Chevy/GM bellhousing: 4-1/4″; rare. Nova 6 cyl. The 5-1/8″ truck bellhousing bores can be reduced down to the 4-11/16″ standard with a precision sizing ring made by Novak. This stock item is available under Novak #BR4. All flywheels from 1955-1961 are of the larger 168 tooth style.
What kind of bellhousing do I need for my Chevy?
Essentially all cast iron bellhousings will accept small and large flywheels (discussed below). However, many aluminum versions will accept only the smaller flywheels. The larger clearance bellhousings will fit both large and small flywheels. One of the most common large bellhousings is the GM #3899621.
How big are the flywheels on a Chevy bellhousing?
We have several of the latest enhanced castings to meet your needs whether it’s an old school 283 or an LS3 Crate engine. These bellhousings are all cased from the highest quality aluminum alloy and the most current enhanced pattern. All will accept large 168 tooth flywheels and up to a 12” clutch.
What kind of bolt pattern does a bellhousing have?
All bellhousings have the standard GM bolt pattern on the rear/transmission side. The large 5-1/8” bore are specifically used with the SM465. Most other transmissions will use the small 4-11/16” bore version.
What kind of bell housing do I need for a transmission?
JEGS carries a diverse line of transmission bellhousings for tranny swaps, blowproof for safety and SFI approved for racing from top bell housing makers like: Ford Racing, Lakewood, JW Performance, McLeod, TCI, Tremec and more. Get your bellhousing dowels and locator kits for installation.
How big is the bore on a Chevy bellhousing?
All bellhousings have the standard GM bolt pattern on the rear/transmission side. The large 5-1/8” bore are specifically used with the SM465. Most other transmissions will use the small 4-11/16” bore version. A large bore can be stepped down with our BR4 centering ring available below.
What kind of engine does a Chevy bellhousing use?
With that said, most Chevy bells will physically fit Small Blocks from 1955 on up, 6 cylinders from 1963 on, and all Big Block engines, W engines, as long as they are Chevrolet engines. GM used engines from other divisions in Chevy cars.
How big are the bells on a Chevy?
Chevrolet has always had just two sizes of flywheel: Big (168 tooth 14″ diameter) and Small (153 tooth 12.75″ diameter), with the 153 tooth flywheel being introduced in 1963. The early bells were cast iron with the aluminum bells being phased in.
