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Old 06-11-2013, 03:57 PM
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motor rebuild

hi, my name is paul....me and my dad plan on rebuilding a 1967 327...im not very mechanicly inclined but he said he wants to put a 66 MM 202 fullie head on it and wants me to find the best cam to use.he also wants me to price out wat it wouldd cost for rings bearings gaskets lifters and new valve seals...im not sure if a regular kit will work considering the head he wants to put on it...any info will be helpfull...were putting the motor in an s10 by the way

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Old 06-11-2013, 04:08 PM
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No one has any love for the old camel hump heads, upgrade if it is in the budget. They are relics. But before anyone can truly answer your questions you need to tell us:

1) What vehicle/how heavy
2) What is your budget
3) What are you power goals
4) What is the intended use (low end torque for towing, cruise night on the weekends, street/strip, daily driver, strip only, circle track racing)
5) Auto/manual trans
6) Do you want to run on 87 octane or premium
7) Rear end gear ratio
8) Do you want a smooth idle or rough lopping idle
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Old 06-11-2013, 04:10 PM
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And btw welcome to the forums!
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Old 06-11-2013, 04:33 PM
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welcome to the forum.
buy new heads,the old 2.02s are just that,,,,old!
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Old 06-11-2013, 04:42 PM
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rebuild

the motor is gonna be in a gmc sanoma...basicly an s10...its gonna be for a mud truck with a automatic trany...i want really good performance,,id run premium gas but i want that old school lopping idle
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Old 06-11-2013, 04:54 PM
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rebuild

also can you tell me what rebuild kits would fit the heads u suggest!!!and what makes 305 differnt from a 327,ect...dont they all have same blocks???m dad has old school parts and wants to get this done quick...im willing to spend what is needed to build a motor i can have and use for a long time and dont mind taking my time!thank u so much
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Old 06-11-2013, 04:55 PM
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build an engine for the power you need.The sound pressure will be good.idle sound doesnt matter
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Old 06-11-2013, 05:05 PM
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305 difference from a 327 is bore size. Smaller combustion chambers and valves, 4" bore engines produce better power than the small bore 305's. No, a 305 can't be bored to 4" and 305 rebuild kits cost more than 327-350's. I usually steer budget customers to Northern, they have low cost good kits. Just know what oversizes and options you need BEFORE ordering kits.

Northern Auto Parts: Home
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Old 06-11-2013, 05:11 PM
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well the block is 100% stock...so i can just get a regular kit right????would the head change what kit i can get??and is a stock 327 4" bore??
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Old 06-11-2013, 05:30 PM
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327 = 4 inch bore and 3.25 inch stroke
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Old 06-11-2013, 06:04 PM
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so what heads should i use...and what are over sizes and options???
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Old 06-11-2013, 06:21 PM
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I would use any GM sbc head built after 74 till about 80. These have hard exhaust seats and with a little cleanup in the ports will flow near a camel back. An 882 head is a pretty fair budget head but as with all GM castings is crack prone. 624 heads are usually cracked. Used Vortec are usually cracked. I would also check for some used aftermkt SR heads.

You will need to know your bore size. Have someone with precision tools measure it or buy a cheap HFreight digital vernier for $10.00, a good investment. You can use it to measure everything you need to know about your motor.. Also the condition of the cylinder will determine what can be used.

Pistons will usually have a letter or an oversize marked on the top. Also the bearings you remove will have sizes and manufacturer on the back side. If they say Delco or Morraine 200 or 400 on they, they are stock GM assembly bearings.

Options include, roller t-chain. better cam and lifters, moly rings, high vol oil pump. I advise the first two. Leave the pump stock or a M-55A (Z/28 pump) which is high pressure std volume. Moly rings are for fresh/straight bores.

Last edited by BOBCRMAN@aol.com; 06-11-2013 at 06:48 PM.
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Old 06-11-2013, 06:33 PM
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rebuild

thank u so much...ill keep u guys updated on how it turns out!!
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Old 06-11-2013, 06:52 PM
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rebuild

New GM Chevy SBC Cast Iron Performance Heads 175cc 59cc 1 94 1 5 Valves | eBay


would this work????
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Old 06-11-2013, 07:44 PM
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They would work,but,you don't wanna use those.They are junk & for the use of the truck you stated,you would be better with 64cc chambers.
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