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On Mon, 25 Feb 2002 21:02:18 -0800 "Rhonda Stalker" <[EMAIL PROTECTED]> writes: > > Replies to this message are sent to The Chevelle Mailing List > Hi all, > My son just got a really good deal on some heads for his 66 chevelle > and> wants me to help him with them. > Question: he has the original 1966 327 motor. > He picked up rebuilt heads from a 1991 350 motor. Looks like they > will bolt> up no problem. > > I know Fords 360 and 390 motors are the same motor just different > stroke. > Is that the same deal with the Chevy 327 and 350? Basically yes they are the same. BUT ..... About 1987 chevy changed the arrangement of the bolts that hold the intake manifold to the heads. In order to make the 327 intake manifold work it will need enlargement of the center bolt holes. I'm not sure of how much or how precise this needs to be. I don't know if this is a D-I-Y project or not. You may want to check with the shop that sold the manifold or an automotive machine shop. I BELIEVE that the bolt angle is only slightly different, but don't know first hand. > Were there any design changes to the heads during those 25yrs to > accommodate> smog equipment that I should know about ?. and will they run Good > on the> 327 block or vise versa?? The 350 heads MAY have larger combustion chambers than the 327 heads. If so, it will lower the compression. It may only be a slight amount and not be noticeable in the seat of your pants. On the other hand it may be quite a bit and cause you to lose a significant amount of power. Sorry I can't be exact, but you should be able to find definite answers either locally or from this list or the NET Sounds like you can be proud of your son. rick schaefer 72 El Camino http://members.home.net/jimmy4/rick1972elky.html TPI 350-700r4 http://chevelles.com/showroom/ricks%20motor%20-L Team Chevelle # 0038 ACES #0140 > He's put in a new Cam, lifters, push rods, HEI ignition, headers, 4 > barrel > Edlebrock, and High performance manifold. (He's been really good > about > saving and storing all the original parts - so that's not a > problem). > > He does plan on storing the 327 heads until the lower end needs work > and > doing a complete out of car rebuild. The car is running great > right now - > it just has an elusive top end tick that's driving him crazy and > he's tired > of looking for lead additives whenever he fills the tank. > > Any help would be appreciated, > > Rhonda Stalker > San Diego, Ca > > > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
