Discussion
JEM Engineering in Falkirk, Scotland.
I got one done mid last year. Unleaded conversion, oversize inlet and outlet valves, polished and ported with a skim for approx £1000. They even fitted the cam I supplied. All I had to do was drop it back onto the block and bolt it up. It was all shiny and repainted.
Would recommend them. They are Pinto enthusiasts.
I got one done mid last year. Unleaded conversion, oversize inlet and outlet valves, polished and ported with a skim for approx £1000. They even fitted the cam I supplied. All I had to do was drop it back onto the block and bolt it up. It was all shiny and repainted.
Would recommend them. They are Pinto enthusiasts.
When you say stage 2/3 what do you mean?
For a road car big inlets only are fine but its all the other work you need to be aware of essentially spec ing your own head
3 angle valve seats, thinner valve heads throat opened out under the seat and the list goes on.
For a cheap head buy an injection head have large inlets fitted with the 3 angle seats have the throats enlarged and blended in, leave the ports alone just port match the manifolds then consider chamber volume with the gasket and piston deck height you are going to use
For a road car big inlets only are fine but its all the other work you need to be aware of essentially spec ing your own head
3 angle valve seats, thinner valve heads throat opened out under the seat and the list goes on.
For a cheap head buy an injection head have large inlets fitted with the 3 angle seats have the throats enlarged and blended in, leave the ports alone just port match the manifolds then consider chamber volume with the gasket and piston deck height you are going to use
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