Length
It is important to use the correct length for proper Rocker geometry. If the cylinder head is skimmed beyond the service limit, or the block deck is cut down, custom push rods are needed.

• 141.5 mm: A10 engine
• 152 mm: short-deck engines (A12, A12A, and 1980 A13)
•~167 mm: tall-deck engines (A14, A15, and 1974 A13)

Custom pushrods made to length from VW pushrods and using the A-series cup. They sit the turned down cup shaft on a ledge in the alloy. Custom made to your length and cheap.

short to long.. 10, 12-13, 14-15...

OK... which is which then ?

and here they are..

Quote:Correct, three pushrod lengths

Block 'A'
A10 with 59mm stroke. This is the shortest block with the shortest pushrods

Block group 'B'
1200, A12[from 1974], A12A, A13[1980-'82] These all had a 70mm stroke & use the middle length pushrod.

Block group 'C'
A13[US model, 1974 only] A14, A15. These used the 77mm stroke [A13 & A14] & the 82mm stroke [A15] but all shared the same basic block dimensions.
These all use the longest pushrods.

How much do Tomei lightweight push rods weight for the A14/15?

... what about the carbon fiber pushrods?

Awesome just in time for the tax return!

I'll weigh them,
production items are expected in June

Hmm, $$ and a weight would be nice to know..

The stroke shouldn't matter pushrod height as it is the cam C/L to head height that sets the pushrod length.

Where has the third length come from??