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 Chevrolet V8 Frame Perches:
1968-72 Chevelle Factory V8 Frame Perches used Short and Wide Early Style SBC motor mounts.
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. Otherwise, they are offered in black textured powdercoat for a small additional charge)
*Not compatible with low mount AC.
LT GEN V Conversion Mount Options:
*Not compatible with low mount AC.
LS Oil Pan Options:
The Holley 302-2 is a modified F-Body pan that was specifically designed for the 64-67 A-Body to clear the inner tie rods at full lock-to-lock. The 302-3 is basically just a redesign on the 302-3 that gives more clearance, allows for a bigger stroke, and has turbo return bungs on either side. Both require Corvette LS3 Dipstick/tube, a gasket, and modifications to the windage tray. Although they were designed for the previous generation A-Body, they are still the best fitting oil pans for this application.
Holley 302-2
Here you can see how much lower the profile of the 302-2/3 oil pan is compared to the 302-1.
LS Accessories:
Power Steering
All the way up to 1979, the factory gearbox takes an inverted flare fitting. It is quite common to find a newer gearbox isntalled with a metric o ring fitting instead. Use the following information to figure out what fittings you need for your power steering lines.
|
|
Pressure |
Return |
|
LS Power Steering Pump |
M16x1.5 O-Ring |
Hose Clamp |
|
Before 1980 Gearbox (SAE) |
5/8"-18 |
11/16"-18 |
|
After 1980 Gearbox (Metric O-Ring) |
M16x1.5 O-Ring |
M18x1.5 O-Ring |
If your O-ring is old and hard, use the following part number for replacements: GM 26001594
DO NOT use any O-ring you find at the parts store. The Metric O-Ring fitting requires an O-Ring made of Viton so the power steering fluid doesn't destroy them.
O-Ring Technical Info: 903 (7.65mm ID x 1.63mm C/S or .301 ID x .064 C/S) Viton
If your vehicle has the Metric O-Ring fittings, then your power steering lines will bolt straight up to any power steering pump offered in an LS application. Make sure there isn't an O-ring already in the power steering pump from the old line!
If your vehicle has the SAE fittings AND the 3/8" lines line up to the back of your LS power steering pump, all you need is THIS ADAPTER to be threaded into the high pressure port on the pump. The power steering pump side is M16x1.5 with a Viton O-Ring while the power steering line will fit a 5/8"-18 Inverted Flare.
3/8" Line threaded into the adapter fitting on the back of an LS truck power steering P pump with THIS ADAPTER
Check out
Lee Power Steering for all your GM gearbox needs. They can rebuild and do precise valve tuning to give you that exact steering you are looking for!
