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Oldsfan · 11-10-2007, 05:28 AM

I don't know what happened to the reply I posted yesterday. Maybe I never sent it....

My Motor's Manual shows that H heads were used on '63 2bbl 394s and '64 394s. J heads were used on '63 4bbl 394s. My '63 parts book shows that '62 and '63 used the same heads (regardless of engine code) and the same valves. I would imagine '64 used these as well. Non-Starfire '61s used different heads and valves and '61 Starfire had their own unique heads and (larger) valves. Actually, only the driver's side head will have a number on it anyway, and it was only for engine identification. You'll have to pick a head for the driver's side, and then visually match up a mate for the passenger's side - one with the same appearance and markings.

Here's a link to an AACA thread with some engine part number interchangability:

http://forums.aaca.org/ubbthreads.ph...289#Post455289

Paul

11-10-2007, 05:28 AM	#6 (permalink)
Oldsfan Senior Member Join Date: Jul 2006 Posts: 508	I don't know what happened to the reply I posted yesterday. Maybe I never sent it.... My Motor's Manual shows that H heads were used on '63 2bbl 394s and '64 394s. J heads were used on '63 4bbl 394s. My '63 parts book shows that '62 and '63 used the same heads (regardless of engine code) and the same valves. I would imagine '64 used these as well. Non-Starfire '61s used different heads and valves and '61 Starfire had their own unique heads and (larger) valves. Actually, only the driver's side head will have a number on it anyway, and it was only for engine identification. You'll have to pick a head for the driver's side, and then visually match up a mate for the passenger's side - one with the same appearance and markings. Here's a link to an AACA thread with some engine part number interchangability: http://forums.aaca.org/ubbthreads.ph...289#Post455289 Paul __________________ There's "Something Extra" about owning an OLDS! -- Visit the "Something Extra" website at: http://home.comcast.net/~oldsfan/MySite/62oldspage.html