Starting my engine build

[davepl]

Originally Posted by Mrturner1

How do I check if the heads need different length pushrods? Call the manufacturer?

Hey, isn't that in the book? :-)

You get an adjustable pushrod (just one). You install it, ideally with a light spring, but probably OK either way. Then you adjust it so that as the rocker arm tip travels on the valve its travel is centered on the tip.

If the pushrod is too long, it'll be off or towards one edge, too short, the other way.

Then when you get it perfectly centered you measure the pushrod. Then you buy pushrods that length.

If you're lucky it's just a standard length and you're fine. Otherwise it adds a few bucks for the nonstandard length.

You'll be stuck a few days waiting on it unless a local parts store rents them, but I recall they're pretty darned cheap if you can find them.

[Mrturner1]

Originally Posted by davepl

Hey, isn't that in the book? :-)

You get an adjustable pushrod (just one). You install it, ideally with a light spring, but probably OK either way. Then you adjust it so that as the rocker arm tip travels on the valve its travel is centered on the tip.

If the pushrod is too long, it'll be off or towards one edge, too short, the other way.

Then when you get it perfectly centered you measure the pushrod. Then you buy pushrods that length.

If you're lucky it's just a standard length and you're fine. Otherwise it adds a few bucks for the nonstandard length.

You'll be stuck a few days waiting on it unless a local parts store rents them, but I recall they're pretty darned cheap if you can find them.

Book is on the way I just couldn't wait haha