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Old 06-21-2002, 08:58 AM
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Post 327 build up ?

I want to put together a 327 because I always wanted one. I have a GM casting #2680 crank to start with and would really like to use a pair of double hump heads because for one they are "old school" and two because I can find them around here easy enough but leave them stock( no porting or anything). I would like to get 350 horse out of it. What do you all think I should use for a cam? Will a 2 bolt block handle this power? Any ideas would be great! I will find a home in either a 69' Chevelle or a 67'-68' Camaro or Firebird.

Tim

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Old 06-21-2002, 09:21 AM
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I would copy the L-79 327/350hp corvette motor.2.02 double humps,11:1(maybe drop a point for pump gas),L-79 cam [email protected] .447lift 114sep.(was considering this cam for my car)Crane cams makes it. A 2 bolt should handle 350hp.
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Old 06-22-2002, 09:03 AM
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Hey Tim I love to hear that 327 talk.
I just bought a 66 chevelle with a you will never beleive this a 327 forged crank {like all 327s}
with the "Fulie" double hump heads and i'm in the process of rebuilding it . I told the guy at the machine shop that I wanted 400 horse he said it's hard but possible to get that he said he likes the double hump heads after they have been ported and he would go with a GM 327 350 horse cam it's a little lumpy but if you run a manual trans you will be fine but if it's auto you will lose all your vacuum and not even have enought to stop. so be sure to put that into play when your choosing.

PLEASE REPLY IT WOULD MEAN A LOT TO A 9TH GRADER LIKE ME
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Old 06-22-2002, 06:48 PM
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I've built a few 327s I still argue that they are faster than the 350s and have put them against the 350s every time I get the chance.Well her's my advise the cam should be square(intake and exhaust the same)for 350 horse lift around 450 to 475 duration (full) 270 center lines 110 to114. pistons flattops, will give 9.75 to 10.2 depending on gasket and machine work(milling)this will work on pump gas but the early heads will need some lead to lube the seats,vortecs are 64cc and flow good, don't need lead but the center bolt holes need to be drilled.the early heads (fuelie type)are between 62 and 66 cc the ports flow good, 202s only come alive after 5000rpms use the chevy brown valve springs and get new rocker nuts.a good dual plane intake and 600 to 650 carb.headders. thermostat at 180 main caps are almost all 2 bolt,I say almost because I have a 4 bolt 327 that came that way and yes it's real. as for 327s anything they do to a 350 will reap more benifits and give more hp to the smaller engine.327s are great why do you think they don't make them any more
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Old 11-09-2002, 02:40 PM
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Hey Tim
Just happen to be doing the same project .Have a 327 68 2 bolt main .Hade it bored 30 over and deck
cleaned up slightly.Bought 30 over flat tops forged. had crank turned and set of klevit bearings to match.
resized the original rods and have old 62 cc set of heads with 194 and 160 have not bought the cam yet nor do I have a car to put it in yet .But I will look for something light like a chevell of nova .Let me know how it worked out for ya.
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Old 11-09-2002, 04:32 PM
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Cool

What does the setup with the 327 block and a 350 crank give you? Is that considered destroking? Or is that the 305 crank in the 327? Just curieous. <img src="confused.gif" border="0">
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Old 11-09-2002, 07:54 PM
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305 and the 350 have the same stroke, the 327 and the 350 have the same bore, a 327 block with a 350 crank will be a 350. I like 327`s because they Rev Fast and smoothly. is also why i take any 307 i can get my hands on, slap the 307 crank in a 350 block and have another 327.
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Old 11-09-2002, 10:08 PM
 
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chevy high performance built a 327 for their dec02 issue which put out around 400hp and 400 lb-ft. pretty basic buildup - flat-tops, performer RPM, 461 heads, and roller cam. check it.
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