Audi 4.2 40V - Forged piston rebuild?
Posted: Thu Feb 25, 2010 1:11 pm
Hi Guys,
Just wanted to know if anyone has or been involved in the rebuilding of the 4.2 40V V8 which involved forged pistons?
I am told the bores are coated in Nickasil and more than likely will not require a re-bore or hone just a simple deglaz, the question I have is are their forged pistons on the market which allow the use of the factory clearances?
I am planning upgrades to suppourt 800bhp (turbos, manifolds, injectors, porting etc) on my RS6 and would much prefer to not have to bore and sleeve the block if we can avoid.
Thanks in advance.
Just wanted to know if anyone has or been involved in the rebuilding of the 4.2 40V V8 which involved forged pistons?
I am told the bores are coated in Nickasil and more than likely will not require a re-bore or hone just a simple deglaz, the question I have is are their forged pistons on the market which allow the use of the factory clearances?
I am planning upgrades to suppourt 800bhp (turbos, manifolds, injectors, porting etc) on my RS6 and would much prefer to not have to bore and sleeve the block if we can avoid.
Thanks in advance.