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05-09-2006, 08:25:35 PM
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#1
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Lifetime Gold Member
Join Date: Nov 2004
Location: Gosnell, Ar, USA
Posts: 808
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Bad News
Well I just ran the #s that are on my block and heads!! When I bought my 73z 28 I was told it had a 350 from a 75 but the #s show that it is a 305!!
Block #s 460776
Heads 376450 W/ 60cc chambers
I am wanting to build a very strong motor for this car!
With this block & heads is there anything I can do or do I need to look for another block.
The heads I have not found what valves they have yet. They do have 60cc chambers though!
Any help would be helpfull!!
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05-09-2006, 09:04:37 PM
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#2
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Gold Member
Join Date: Apr 2006
Location: Calgary, Alberta
Posts: 4,006
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if you are trying to do a COMPLETE rebuild, you can buy a 350 block and heads for cheap. You can use all of the hardware from the 305 (steering pump, alternator, ect...)
I would suggest getting a 350 or even a SB 400, it will fit right in with no changes...
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05-10-2006, 12:08:12 AM
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#3
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Lifetime Gold Member
Join Date: Jun 2003
Location: Endicott, NY
Posts: 8,043
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I've rebuilt a couple of 305's which turned out OK. Biggest concern is that they are a soft/low nickle block. Very poor thin casting too. Have to be sonic tested to se IF they can be bored too. Basically, a POS.
Options: hunt the junk yards for a 350 or 400 SBC. Buy a rebuild kit from Northern Autoparts http://www.northernautoparts.com/Index.cfm By kit I mean either a complete kit minus the crank (assuming the one you find is OK) or one of their complete kits http://www.northernautoparts.com/Pro...ctModelId=1666 They also have kit with cranks.
Also check with Performance Automotive Warehouse (PAW) for Speed-O-Motive or a short bloxk or long block kits. They both have some nice stuff.
__________________
Cardinal
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05-10-2006, 12:27:31 AM
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#4
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Veteran Member
Join Date: May 2003
Location: British Columbia, Canada
Posts: 9,076
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450s are the 1.72 open chamber 305 heads.
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05-10-2006, 02:10:11 AM
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#5
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Lifetime Gold Member
Join Date: Nov 2004
Location: Gosnell, Ar, USA
Posts: 808
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Thanks to All
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05-10-2006, 04:00:42 PM
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#6
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Veteran Member
Join Date: Mar 2006
Location: So Cal
Posts: 188
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I've got a spare 350 if you want it.
__________________
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Originally Posted by che77vy
Can't we all just get along? We can all get together and sit on my big bumpers and tell Camaro stories.
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05-10-2006, 04:11:19 PM
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#7
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Lifetime Gold Member
Join Date: Mar 2001
Location: Joplin Mo. 64801
Posts: 11,973
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buy a 350 and build it.
sell the 305 to someone who wants one.
__________________
71 Camaro 355 NA
11.1650 @ 119.30
1.5028 60'
Quote:
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Originally Posted by Lowend
For the record I agree with Aces and hhott71
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Quote:
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Originally Posted by Lowend
If the rear end grenades it blows your nuts off...
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Quote:
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Originally Posted by Strange81Z
That's because we have more to give....ask any women who's been with a conservative and a liberal! LOL!
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05-10-2006, 08:04:56 PM
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#8
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Veteran Member
Join Date: Jun 2003
Location: savannah, GA USA
Posts: 4,202
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Quote:
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Originally Posted by BowHunter
Well I just ran the #s that are on my block and heads!! When I bought my 73z 28 I was told it had a 350 from a 75 but the #s show that it is a 305!!
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Could be worse...I bought my first Camaro expecting to find a 305 under the hood. Nope...owner was completely wrong! 267!! 
__________________
That government is best which governs the least, because its people discipline themselves. --Thomas Jefferson
A government big enough to give you everything you want is a government big enough to take from you everything you have.--Gerald Ford
"When one gets in bed with government, one must expect the diseases it spreads." --Congressman Ron Paul M.D.
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05-10-2006, 10:15:36 PM
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#9
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Lifetime Gold Member
Join Date: Jan 2006
Location: Elizabeth City, NC
Posts: 1,667
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The guy I got my car from was a "Mech", he said the #8 piston rings never set, swears it had 2.55 rearend. And had wires all over the place.
#8 was fine, had stock 3.08 gears, and fixed all the BS wiring.
He would fight over the 2.55 thing too, Dummass
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