hi guys, about to start a rebuild on my pinto...wats needed to convert the head to unleaded? any help will be much appreciated...cheers corey.

is it an aussie head? ive been under the impression for a while now that all aussie heads are already unleaded

I think you need to have the valve seats hardened, The pinto motors are designed to run on leaded fuel, lead being the softener when coated over the valve seats.

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Originally posted by Sterling

is it an aussie head? ive been under the impression for a while now that all aussie heads are already unleaded

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nope!

You will need to have hardened valve seats inserted in the head for the exhaust valves. Have a ring around before you settle on a place as the prices, (and method) will vary.

Shaun

Try to get a head off a Sierra injected engine. They have hardened valve seats and the inlet tracts are better shaped than the earlier Pinto head.

mines got Telstar Valves.

cheers guys!!!!
spanner....as im sure telstar valves would be easier to find and cheaper than sierra...wats needed to put these in..are they the same size as standard pinto? wat did it roughly cost u to do it to urs?
cheers corey.

Ford Telsta/mazda FE valves are 44mm(dia) x 112(length) x 8(stem)

They are/were a cheap upgrade instead of buying the grp1 gpr2 stainless valves. (When they used to cost an arm and a leg) Prices are much cheaper now so unless you are building to a student budget you're better off just getting some new, stainless and decent. (around $30 a valve)

The valves themselves will not solve the problem, you still need to fix the seats.

Shaun

cheers shaun!!! where do i get these stainless ones from..? and also wat do i need to do to the seats...