Will the composite LT4 valve covers work with the alternator on the fbodys? thanks

 

yes

 

are the LT4 valve covers taller than the LT1, are they a direct replacement?? Does anyone know the GM part num,ber?? Thanx!!

 

12552321 left valve cover 12552322 right valve cover. You also need 8 studs and bolts, 10108674 (8) studs, 10108675 (8) bolts. Oh, and they are a direct replacement.

 

You are also going to need an corvette oil filler cap and a corvette PCV hose. Stock PCV hose isn't the best fitting since PCV grommet on the composite valve cover is on the side as oppose to the top on the stamped covers. The covers are the same height last time I measured them.

 

Do you happen to have a p/n for the 'vette PCV hose?

 

Rob, on my reciept, the part number is:
12557604 F-Tube ASM

Cost was $5.44 from my local GM Dealership. Seemed kinda low to me.

Don't kill me if the part number is not correct. I ordered a bunch of hoses at one time and the descriptions on the reciept are Hose or Tube on all of them. I tried to rule out as many part number that pertains to an F-Body. The number 12557604 didn't match up to any so I reasoned it's the Corvette PCV hose.

 

Thanx for the part numbers!!

 

the oil cap is 10108674