318/360 Chrysler Head With Smog Ports
318/360 Chrysler Head With Out Smog Ports
General Motors 4 Cylinder
151 Pontiac Note: the locations of bolt hole in boss.
General Motors 6 Cylinder
Chevy Flat Rear main Cap | Chevy Flat Rear main Cap |
Chevy Grooved Rear main Cap | |
250 Chevy large smog tube (.440") | 250 Chevy 4 Pulse has boss here with no hole 5 pulse has hole as shown |
General Motors 8 Cylinder
Chevy Flat Rear main Cap | Chevy small block 1986 & newer |
Big block Chevy ERROR MSGwith a/c compressor mount | Big block Chevy with out a/c compressor mount |
Big block Chevy ERROR MSGtruck extra bolt hole | |
Ford 4 Cylinder
140 Ford oval shaped intake port | 140 Ford D shaped intake ports |
140 Ford round shaped intake ports | 140 Fordy HSC head |
Ford 6 Cylinder
177 Ford 3-Bolt mounting pad | 177 Ford 1-Bolt mounting pad |
177 Ford arrows show double dipstick locations | 177 Ford arrows show single dipstick locations |
177 Ford
extra accessory mounting boss and bolt mount
200 Ford EGR boss
300 Ford smog holes (No smog holes means non-smog)
Ford 8 Cylinder
302/351 Ford with out side smogpad | 302/351 Ford ERROR MSGwith side smog |
390/400 Ford raised ridge on first counterweight | |