How do I identify a Ford cylinder head?

Look for three different locations where your Ford cylinder head code number will be located: on top of the head under the valve cover; on the bottom of the head, requiring the head to be removed; and on the side of the head just under the valve cover lip.

How do I know what heads are on my 351W?

Look at the rocker arm. If you have a conventional rocker arm with a machined slot in the head for a push rod, you have a 221 or a 260 head. If the head has a bolt down sled fulcrum, with a large hole drilled for the pushrod, then it is a post-’77 255, 302, 351W head.

How much HP can GT40 heads make?

300whp is a factory freak car, most ported GT40 setups can get around 310, box stock ones…

What did e7 heads come on?

The e7’s also started out in the ford trucks and were used on almost every truck 302-351 from 87 up. They were also used in 91-93 tbirds/cougar along with a less agressive h.o. cam later used in the 93 up cobra.

Will 302 heads fit on a 351 Windsor?

For the most part 302 heads and 351W heads are the same. Different years can have different combustion chamber sizes but ffor the most part there will be no performance increases by going with 302 heads. Plus you will need to drill all the head bolt holes out as the 351W uses larger head bolts.

When did small block Ford cylinder heads change?

Small-block Ford cylinder heads began to change significantly in the 1970s, which is where you need to pay even closer attention to casting differences. Port and valve sizes remain virtually the same for 289/302 heads through the years, but combustion chamber changes a lot after 1971.

How to machine small block Ford heads step by step?

You can use the social sharing buttons to the left, or copy and paste the website link: https://www.diyford.com/machine-small-block-ford-heads-step-step/ So, what to do about “Lo-Po” cylinder heads in the machine shop? John Da Luz of JMC Motorsports suggests good port and bowl work for improved torque.

How are studs installed on a small block Ford head?

Pinning the studs involves drilling a hole through the stud pedestal and inserting a tension pin through the pedestal and stud. This keeps the stud “pinned” in the head. An easier trick is to install screw-in rocker-arm studs. This may be performed several different ways. Jim Grubbs removed our press-in studs and installed screw-in studs.

Where was the Ford High Performance cylinder head cast?

Cylinder-head castings have a casting number and a casting date. This casting date code of “5D19” means April 19, 1965, which is the actual date this head was cast at the Cleveland foundry. The 289 High Performance cylinder head isn’t what a lot of folks think it is.

When to choose cylinder heads for a small block Ford engine?

Throw in a high-performance, high-lift camshaft, and engine failure becomes probable. Whenever you’re shopping cylinder heads for a 289/302-ci engine, you will want early 289 castings with the pushrod guides cast into the cylinder head. This means using a cylinder head casting prior to April/May of 1966.

What kind of cylinder head does a Ford 221 have?

The 221 cylinder head is identifiable at a glance by observing its small kidneyshaped 45- to 51-cc combustion chambers along with 1.59/1.39-inch intake/exhaust valves. These heads are casting numbered C2OE or C3OE and are identical in appearance. The 260 heads have larger 52- to 55-cc kidney-shaped chambers with the same valve size.

What kind of cylinder head does a Ford 289 use?

This makes it a good cylinder head for any 289/302 Ford if you want to pump up the power a bit. Otherwise, the 4V head has the same size valves and ports as the 289. The 302-2V head for 1968 has larger 63-cc chambers to lower compression and reduce emissions. Look for C7OE-C, C7OE-G, C8AE-J, C8DE-F, C8OE-J, C8OE-M, C8OE-K, and C8OE-L.

How do I identify a Ford cylinder head?