291 camel humps - Team Camaro Tech
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post #1 of 6 (permalink) Old Mar 25th, 04, 09:52 AM Thread Starter
 
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i recently bought a '68 327 motor with 291 camel humps on it for 200 bucks. my question is, are these heads worth rebuilding, or should i just sell them off and buy some aftermarket ones? also, is there any way to put these heads on a motor with all power accessories, since there are no accessory holes? thanks...
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post #2 of 6 (permalink) Old Mar 25th, 04, 03:52 PM
 
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Are they big valved or medium valved??

They are good heads for way back then and do very well stock on a 327, imho..

But for the price it costs to bring them up to a modern heads spec., it may be worth it to sell them and buy new aftermarket ones that already have screw-in studs and hardened seats and such..

I probably would run them by first pinning the studs using 1/8" x 1" long roll pins and then adding about a half a bottle of good old Marvel Mystery Oil to the gas tank and put the rest in the oil every so often.

MMO is an excellent top-oil that is made for this. It isn't a lead substitute but rather a top-oil to help the valves and guides and such, even the rings..

pdq67

PS., and a set of cheap, $25 or so, stock number -142, Z-28 springs..



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post #3 of 6 (permalink) Old Mar 25th, 04, 03:56 PM
 
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I have a set (of 291's) that I just had reworked, but don't know if I would do it again. Probably could have gotten some decent aluminum ones for not too much more than my machine work, purchase price, shipping, etc. Are you planning on putting it in your 69? I am doing a similar installation, with a 68 motor in a 69, but if you are going for accuracy, it isn't really the way to go. The lack of accessory holes gives it a whole different look and layout from what the 69's came with originally- alternator is on opposite side, etc. Mine is a driver, so I'm not being a stickler. I kept the old heads and had seats done (whether this is necessary is a controversial topic, as other posts have covered)-I had a machine shop later advise me that if I ran a lead additive for the first thousand miles after the valve job, to let things settle in, I could have avoided the hardened seats altogether. Not sure who to believe. In any case, I am finding that there is a reason that people like the accessory holes. All the aftermarket stuff comes with them, for one thing. Are you going for horsepower, or authenticity, or a hybrid?
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post #4 of 6 (permalink) Old Mar 25th, 04, 04:00 PM
 
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If you do sell, the heads should fetch $150-200, at least. What block did you get? Passenger, Camaro, Corvette?
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post #5 of 6 (permalink) Old Mar 25th, 04, 04:10 PM Thread Starter
 
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block # is 3914660, not sure what that means though.
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post #6 of 6 (permalink) Old Mar 25th, 04, 05:08 PM
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It means it's a 1968 327ci block.

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