The 1969 and newer have shorter frame mounts and taller engine mounts.

It is very common to be sold incorrect 1968 engine mounts when you go to buy the 69's mounts. Many sellers don't have the correct part numbers in their books. They sometimes put the wrong part in the box. This goes for both the frame mounts and the engine/motor mounts.

Measure the thickness of your engine frame mounts to get the correct width for your motor mounts.

Beginning in 1969....see frame mount images above.
1. Driver's side is 2.5 inches from base to the top of the bracket. It measures 1.75 inches from base to center of the bracket bolt hole.
2. The passenger side bracket measures 2.0 inches from the base to the top of the bracket. It measures 1&3/8 inches from the base to the center of the bracket bolt hole.
3. Width is approximately 2 5/16".

If there is ANY gap between the SIDES of your motor mounts and the frame stands, you have the wrong motor mounts. The correct stock interlocking type motor mount for a '69 big block and 350/302 is the Anchor 2283.

Nova - the 68 to 72 nova follows the same rules as a 1969 Camaro.

Frame Mounts

THE SHORTER ONE HAS PART NUMBER 3980942 STAMPED IN THE BOTTOM CORNER
THE TALLER ONE IS STAMPED IN THE SAME AREA AS THE FIRST ONE 3980943,
BUT ON THE ORIGINAL GM STICKER IS PART NUMBER IS 3980941.

If there is ANY gap between the SIDES of your motor mounts and the frame stands, you have the wrong motor mounts. The correct stock interlocking type motor mount for a '69 big block and 350/302 is the Anchor 2283.

Motor Mounts

Improper engine fitment can cause hood clearance issues, headers or exhaust that hit the steering shaft or gear, oil pans that bottom out on the frame support or hit the steering linkage, etc... it is important to use the correct mount combination in your car.

Tip: use a distributor wrench to access the nuts inside the frame when removing/installing engine mounts.

GENERAL MOTORS

Chevy

Chevy mounts & brackets are confusing, until you get into the early 70's (1972).

There were at least 2 styles of mounts used ("tall" & "short"). There doesn't appear to be any rhyme or reason to what or why some application used what - BUT THE BRACKET & MOUNT MUST MATCH EACH OTHER.

The "tall" mount has an inside width of 2 3/8" and it's 2.25" tall.

The "short" mount has an inside width of 2 5/8 and is 1.5" tall.

Camaro:

1967 - 69 Camaros use either a small block, or big block bracket combination.
The big block mount will have a taller drivers side mount - which will shift the engine to the right.
The mounts change in 1969. A 6-cylinder car will need one of the V8 mount combinations to correctly install a V8.

67 - 69 SBC Camaro - CD59LH & CD59RH, along with NG95.
67 - 68 BBC Camaro - FM322 & PM22 ("short" mount).
69 BBC Camaro - FM323 & PM23 ("tall" mount).
1970 - 71 Camaro: We offer the original big block frame bracket. Part # CBB70

This mount was also used on the high performance Z28 which used a 350 engine. This combination uses the "tall" engine mount - part # PM23.

In 1972 the engine mount design changes and ALL V8's sat on the SAME MOUNT/BRACKET COMBINATION. Now the insulator is on the frame and the steel bracket is bolted to the engine.

You can install a big block into ANY 1972 - 81 Camaro on the original V8 engine mounts the car came with, since technically, they're the "1972 396 engine mounts".

The ONLY time you'd have to install CBB70 in a 2nd gen car is if the car is a 1970 or 71 car, or you are using headers with primary pipes greater than 2.0" - which will be bent to snake around the old style tower bracket. The only issue with this is you will need to locate and drill the appropriate holes for the mounts, since your subframe will not be looking for this style mount.

Nova - the 68 to 72 nova follows the same rules as a 1969 Camaro.

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