View Full Version : Piston question

06-11-2004, 01:10 AM
What year did they stop putting the forged pistons in the 5.0 mustangs. I am looking at a 1993 cobra and I was wanting to know if it had the forged pistons in it. Thanks. Andrew.

06-11-2004, 05:30 PM
The last year of forged pistons was '91 or '92. The 93 cobra, including 94/95's have the Hyperutectic (sp?) pistons.

06-12-2004, 12:05 AM
Reckon that means I'll have to dig into the engine when I get it, huh? :D

06-12-2004, 12:41 AM
Maybe not... My friend has 109k on his '95, still running strong. If you start talking boost or juice maybe. ;)

06-29-2004, 09:48 PM
'93 started the aluminum hypercrap pistons.
They are a livable piston... they're just more sensitive than the forged, obviously. They can take a power adder of modest levels... such as 6psi blower (tuned correctly and treated correctly) or up to a 100 shot (also tuned and treated properly).
Get greedy with 'em and they show you the ugly side real quick.