Dirty Dingo Motorsports

1967-69 First Generation

1967-69 F-Body

DD-LS-ALT-PS-AC-SANDEN (Truck Spacing)

In order to understand what conversion mounts you need for your swap, you need to first understand SBC GEN 1 motor mounts. 1967-69 Camaro’s that came from the factory with a SBC typically used Short and Wides while Camaro’s with a BBC used Tall and Narrow. You may come across an instance where a previous owner has installed Frame Perches from a different vehicle so it is important to understand both types.

If you have a Pontiac Firebird or a Camaro that didn’t begin with a V8, you need to acquire Chevy V8 Frame Perches. They will have the bolt holes already in the engine crossmember, there is no need for drilling. Otherwise check out this Clamshell Style method.

A- Frame Perch, B- Early Style SBC/BBC Motor Mount, C- LS Conversion Mount

This example photo is from an Impala, your Frame Perch will look different.

Reproduction Chevrolet V8 Frame Perches:

-’67-69 Camaro and ’68-72 Nova small block (these are also offered individually under PN# W-992L and W-992R)

-‘69 Camaro 302, 350, ‘69-74 Nova 350

-’67-68 Camaro Big Block

-’69 Camaro and ’69-70 Nova Big Block

This usually sparks the question, "Which one is better?". If sticking to rubber, the Tall and Narrow has more rubber to further dampen any vibrations. If going poly, its the same either way. If you spent the time and money to swap from Short and Wide to Tall and Narrow, you wouldn't really notice that big of a difference. If you look at the following example comparison photo, you can see the end result in height is about the same. Meaning it's not worth the money to convert what you currently have to the other style for something such as oil pan clearance. Use what you got and stop stressing over which one is best. The bolt pattern to the block side of the Early Style is the exact same and doesn't make a difference when choosing your conversion 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)

Tall And Narrow

OEM Part Numbers(Rubber): 3962740, 3990918, 3962748

Aftermarket Part Number(Rubber): 2283

Energy Suspension (Poly): 3.1117 Zinc, 3.1118 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:

DD-LS-DOUBLE-D-S (Steel)

(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)