When did the Pontiac cylinder head come out?
*All rocker arms are threaded beginning with Motor Unit Number 709986 assembled on or about May 7, 1973. 1957-1958 1959-1960 1961-1964 1965-1979
When was the 4X head installed on a Pontiac 400?
Look at the other end where there is a lone un-drilled raised machined boss. This is where there will be a stamped number. The codes are listed below. The 4X head was installed on the 400 and 455 during the mid 1970’s. Most I have found are 455 stamping. 3H 2.11/1.66 valves 98/101cc’s.
Where are the bosses on a Pontiac cylinder head?
Looking at the head from the exhaust port side, there are two drilled bosses for an A/C bracket on the passenger side (over the end exhaust port) on 4X or 6X heads. Look at the other end where there is a lone un-drilled raised machined boss.
What are the cylinder ID numbers on a Pontiac 400?
Pontiac 400 428 455 Engine Casting Numbers Pontiac Cylinder Head ID Numbers Printable PDF What are you looking for? Back to Top Work in Progress WIP: 1941 Pontiac Business Coupe
Where can I find the Pontiac cylinder head ID number?
Pontiac Cylinder Head ID Numbers Pontiac Cylinder Head ID Numbers About Contact Parts For Sale GM FoMoCo MOPAR Gaskets Ignition & Small Electrical Items Light Bulbs Owner’s Manuals Seals
What was the last year a Pontiac cylinder head was made?
Popular Hot Rodding (1970-1979) Popular Hot Rodding (1980-2007) Rod Action (1972-1992) Rod & Custom (1954-1959) Rod & Custom (1960-1969)
What are the casting numbers on a Chevy cylinder head?
Chevy cylinder head Identification – Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Find cast numbers Cylinder Head ID Use these casting numbers to identify the heads you have. Small Block Casting numbers
When did Pontiac start making open chamber heads?
In 1967 Pontiac made some open chamber heads (i.e. 061).After 1967 the heads were open chamber heads. ** Use sheet stainless steel block off plate.