as above

which would be better suited for a fast road car running around 450bhp?

 

4032 is a high silicone material (low expansion) that can run tighter bore clearances.
2618 is a high(er) expansion material typically used in higher output engines.
4032 will be quieter than 2618
You would probably be ok with the 4032 if you don't plan to go mad in the future.

 

generally speaking then 4032 is better suited to road use cars and below 500-550ish

 

cheers guys

 

also what are je/manley pistons like?

 

JE's have often been described 'like a skeleton *****ng in a biscuit barrel'
Mahle produce very good pistons for the money.


Mick

 

Have a little read but as above it depends on your plans with your build and how much power you are aiming for.SJ.

http://www.moparmusclemagazine.com/t...oy_comparison/

 

looks like 4032 for me then

p.s the gauge arrived today but ive not opened it as you have used a mile of tape so i will let the mrs do that

 

how about wossner pistons or cp pistons?

 

Snap!!! your wife's going to unwrap it and my wife wrapped it up she must of thought it was a present for youSJ.

 

To be honest Mahle pistons is where you want to be at,there are a lot of company's that make pistons but I definitely think that the Mahle brand is a very good compromise between quality and reliability.its the go to piston for a lot of top engine builders.SJ.