1958-1964 GM B Body
Chevrolet Biscayne, Delray, Bel Air, Impala,
Buick LeSabre, Invicta
Oldsmobile Dynamic / Super / Golden Rocket 88, Starfire
Pontiac Bonneville, Star Chief, Catalina, Parisienne
If your vehicle did not start out as a Chevy V8, you will need to acquire Chevy V8 frame perches for a direct bolt in swap. Otherwise check out the Clamshell Mount method.
Reproduction 1958-1964 B-Body SBC V8 Frame perches:
OER
1958-1964 Chevrolet SBC's used the short and wide motor mount.
Short And Wide
OEM Part Numbers(Rubber): 3990914, 3960768, 6258154
Aftermarket Part Numbers(Rubber): 2142, 2285, 2267
Energy Suspension (Poly): 3.1114 Zinc, 3.1115 Chrome (G-Black, R-Red)
OEM rubber motor mounts last much longer than aftermarkert rubber. Poly mounts essentially last a lifetime and don't need to be replaced.
LS GEN III/IV Conversion Mount Options:
(Starting out in raw non painted steel so make sure you paint them before the final install otherwise they will rust. They are also offered in black textured powdercoat for a small additional charge)
*Not compatible with low mount AC and passenger side motor mount requires a notch on the lower side
LT GEN V Conversion Mount Options:
*Not compatible with low mount AC and passenger side motor mount requires a notch on the lower side
Common Oil Pan Options:
302-2
302-3
The Holley 302-2 is a modified F-Body pan. The 302-3 is basically the second revision. The 302-3 has turbo drain ports on either side of the pan, can do a larger stroke, and has better clearance from the engine crossmember. Out of these three pans, the 302-3 is superior in every way. You will have to cut the windage tray a little and you still have to buy the dipstick/tube and the gasket however. We sell the F-Body pan as a complete kit, all you need is your choice of oil and oil filter.
Oil Pan Dimensions
The factory engine crossmember may require a small notch on either side to flatten the bottom section out. Some have done a spacer under the V8 Frame Perch itself to raise the engine up to clear the engine crossmember however that will directly affect your driveline angle. In order to do the spacer and still be able to bolt the engine back down with the correct geometry, it is easiest to remove the Frame Perches and bolt everything to the engine first and lower it in to position.
Factory 1958-64 B-Body Engine Crossmember
Notched 1958-64 B-Body Engine Crossmember
This here is the F Body pan from underneath.
This is how much room there was between the back of the engine and the firewall.
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