Installed on a SBC, what is the bushing eye-eye dimension?
A:
These Billet S/B Chevy Mounts, part number: 91018030, billet motor mounts are machined from 2025 aluminum and include bushing inserts. They have a fully polished finish. And include universal frame adaptors. These mounts are generally too wide for Model T & Model A chassis.
The dimensions are:
• Flange Face to Bushing Eye: 3.5"
• THE DISTANCE FROM THE BLOCK SIDE OF THE 3-BOLT FLANGE
TO THE CENTER OF THE BUSHING EYE IS 3.5".
• THIS MEASUREMENT IS FROM THE 2-BOLT ("TOP" FASTENERS),
DIRECTLY OUTWARDS. THIS WOULD BE "LEVEL" WITH THE EARTH
(REMEMBER, THE 3-BOLT FLANGE ATTACHES TO THE ENGINE AND
IS AT A 45 DEGREE ANGLE WHEN INSTALLED)
So with that being said, you should measure the width of your engine block at the motor mount mounting surface, and add 7 inches to get the eye to eye distance of these motor mounts on your engine.