whats the difference

[pilks]

between this kit
http://www.parkwayperformance.com/2vheadswap.asp

and this one

http://www.stangmods.com/Ford-Racing-PI-Heads-and-Intake-Package-p/00956.htm

 

[MustangChris]

well, one comes with:
4.6L PI Cylinder Heads (complete)
PI Intake Manifold (with aluminum water crossover passage)
Intake Gaskets
Thermostat and O-Ring
Thermostat Housing Bolts
Heater Hose (for the different runner length of the PI Intake)
Heater Hose Nipple
Alternator Bracket and Bolts
Dipstick Tube
Camshaft Bolts
Head Gaskets
Exhaust Gaskets
Valve Cover Gaskets
Timing Cover Gaskets
Water Pump Gasket
OEM Ford Head Bolts
Motorcraft Spark Plugs
at $1415.00

and the other one comes with:
Ford Racing Cylinder Head Changing Kit
Performance Improvement Intake Manifold
Power Improvement Cylinder Heads (Right and Left Hand Sides)
at $1,259.95

if you compare what all comes in the kit, you understand the change in price.

 

[uncltrvlnmatt]

Also parkway claims a 60hp improvement compaired to stangmods 45-50hp improvement. You really won't know until it is dyno'd. Anybody can claim anything thay want.