Head confusion - pocketed piston
Posted: Tue Oct 03, 2017 10:26 pm
I've read the forums extensively but I'm just trying to get my head around what I need to do.
I have a standard Rover 4.6 V8 in a 920kg car. I want to upgrade the following over the winter:
Camshaft
Heads
I have a spare couple of heads for the 4.6 which I wish to upgrade to the Stage 3 RPI head kit as well as some port work. I've also looked at the cams however I see there is an issue with flat pistons(unlike pocketed in TVR).
So here is the confusion. If I put larger valves in the head are they any more or less likely to come into contact with the piston if I used a mild cam such as the MC1 or do the clearances remain the same? I'd obviously like to avoid putting in pocketed pistons if I can Very Happy
Many thanks for your help!
I have a standard Rover 4.6 V8 in a 920kg car. I want to upgrade the following over the winter:
Camshaft
Heads
I have a spare couple of heads for the 4.6 which I wish to upgrade to the Stage 3 RPI head kit as well as some port work. I've also looked at the cams however I see there is an issue with flat pistons(unlike pocketed in TVR).
So here is the confusion. If I put larger valves in the head are they any more or less likely to come into contact with the piston if I used a mild cam such as the MC1 or do the clearances remain the same? I'd obviously like to avoid putting in pocketed pistons if I can Very Happy
Many thanks for your help!