Hot Rod Forum banner
1 - 1 of 1 Posts

·
Registered
Joined
·
9,050 Posts
Exhaust stud/bolt spacing on SBC production/passenger heads is the same from 1955 to end of production. A variation in the late seventies put an extra hole on right side head for certain body styles. Original hole was retained. Some aluminum and Vortec heads retain same bolt pattern but have "Raised" roof ports that require a taller header to seal.
 
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top