Chinaski

And am wondering if I ordered the correct part.

Link:

http://www.summitracing.com/parts/PTP-7-504


It says they are the "Early Short and Wide" motor mount that measures 2 5/8 in. between the ears and 1 3/4 in. tall to the center of the through bolt hole.

Doing an engine swap on my '73 Small Block in the not too distant future. Will these work? Or did the Saleshole at Summit sell me the wrong part?

MrJlr

Those will work fine

Chinaski

Thanks Man!

REELAV8R

Those don't have the safety locking function if the poly fails that keeps the motor from rising in the event of failure of the poly.

These do if your looking for that feature.

http://www.fullthrottlecorvette.com/...ct_p_1851.html

MrJlr

Kinda overkill for most applications.

REELAV8R

Saved my hood,carb, air cleaner, and ? Last year when the rubber on my left mount failed. Without it the engine would have been free to raise up and damage itself. This was on stock 180 HP motor.
You decide if it's overkill or not.

PeteZO6

Not at all! There was a recall for most Chevrolet's in the late,60s or early 70s for failing motor mounts that would let the engine rock up on the driver side. Chewed up fan shrouds and air cleaners hitting the hood were the result. Many guys used a chain on the driver side of the engine to keep the engine from raising on the driver side. Interlocking motor mounts are a simple way to control engine movement.
To be fair, most broken motor mounts were caused by shifting into drive and hitting the gas while still rolling backwards. Still, interlocking motor mounts are the best way to go.

Pete

MrJlr

The key words were "most applications"

PeteZO6

That may be, but why take the chance? Interlocking motor mounts prevent tearing the driver side mount apart. Seems like a no brainer to me.

Pete

qwank

I had a '68 camaro that still had the recall straps on it. the problem was the engine would tilt up and the solid kickdown rod for the powerglide transmission would cause the throttle to stay open.

69bones

The Summit ad says --"If applicable, the mounts feature a polylocked "run-safe" feature, just in case you play way too hard, so you can still get back home."

What does that mean? What makes these mounts worth ~$60 instead of the $30x2 versions from the vette site?