differences b/w cobra motor and mach
02-01-2008, 05:50 PM
#2
corner carver
Join Date: Oct 2006
Location: New England
Posts: 4,371
RE: differences b/w cobra motor and mach
The cams are different. The Mach is suppose to have more low end power than the Cobra and vice versa. Although the Mach tends to make more hp than the stock rating most of the time.
02-01-2008, 11:01 PM
#9
4th Gear Member
Join Date: Oct 2006
Location: Durham, NC
Posts: 1,541
RE: differences b/w cobra motor and mach
depends, theres strengths to both sides:
allmotors have: aluminum blocks/heads and intakes, 4v per cylinder and a forged crankshaft with cast internals.
99 motor: it has the potential to not be "fixed", has a 9.5:1CR, and a 70% chance of being a teksid block,and c-seies "tumbleport" heads
01 motor:no"fix" to worry about, and a weaker windsor casting of the 4.6L block,everything else matching the 99 otherwise
mach motor: windsor casting, 03-04 heads, revised cams for low-end torque, and a 10:1CR
You can check for a teksid casting by examining thevalley webbing: square it is teksid, diamond it is windsor. a 10:1 compression ratio isharder to heavily boost but irreleventconsidering forging out would be best for thatkind of use. all depends on your plans.
allmotors have: aluminum blocks/heads and intakes, 4v per cylinder and a forged crankshaft with cast internals.
99 motor: it has the potential to not be "fixed", has a 9.5:1CR, and a 70% chance of being a teksid block,and c-seies "tumbleport" heads
01 motor:no"fix" to worry about, and a weaker windsor casting of the 4.6L block,everything else matching the 99 otherwise
mach motor: windsor casting, 03-04 heads, revised cams for low-end torque, and a 10:1CR
You can check for a teksid casting by examining thevalley webbing: square it is teksid, diamond it is windsor. a 10:1 compression ratio isharder to heavily boost but irreleventconsidering forging out would be best for thatkind of use. all depends on your plans.
