#64293 - 04/17/11 08:01 PM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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tlowe #1716
12 PORT ADVERTISER
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Registered: 04/01/04
Posts: 2327
Loc: Dysart, Iowa
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Beater, Remind me what mix of parts you are working with. Crank block
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#64310 - 04/19/11 07:28 AM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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tlowe #1716
12 PORT ADVERTISER
Active BB Member
  
Registered: 04/01/04
Posts: 2327
Loc: Dysart, Iowa
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I have used 327 pistons in a 181 for rebuild.
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#64321 - 04/19/11 07:56 PM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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tlowe #1716
12 PORT ADVERTISER
Active BB Member
  
Registered: 04/01/04
Posts: 2327
Loc: Dysart, Iowa
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Your head is going to be right near 70CC. Why not use the 250 pistons and deck the block? Check this out.
http://www.rbracing-rsr.com/compstaticcalc.html
I used 3.905 bore 3.6 stroke .041 head gasket 10 CC dish Zero deck 70CC head chamber
Get 9-1 compression. If the piston is only 6CC dish then slightly more compression. Tom
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#64332 - 04/21/11 08:38 AM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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Cybrow
Bulletin Board Only Member
Registered: 04/20/11
Posts: 2
Loc: California
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Hey guys, I have a 153 ci that I need a timing cover for and was wondering where to look. It's in a 1967 boat but the engine was replaced in about 1984. Engine says 2.5L and my parts guy identified it as a 153. My cover has rusted through on the bottom and is paper thin and full of pin holes. Would anyone know if this cover is used on other engines? Thanks.

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#64336 - 04/21/11 01:59 PM
Re: GM 4 cylinders 151 153 181
[Re: Twisted6 I.I #3220]
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Cybrow
Bulletin Board Only Member
Registered: 04/20/11
Posts: 2
Loc: California
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If i remember right you should be able to grab one off any L6.No pun, But i have a boat load laying around.
Excellent, thanks!!! That helped me find one for $25.00. It's a good thing, the fish are biting.
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#66131 - 08/29/11 05:28 PM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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mike 53-210
Active BB Member
Registered: 03/28/09
Posts: 21
Loc: eldridge, ia
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Clean-up water passages before welding end cap with long drill bit, file ?
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#66134 - 08/29/11 07:12 PM
Re: GM 4 cylinders 151 153 181
[Re: mike 53-210]
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tlowe #1716
12 PORT ADVERTISER
Active BB Member
  
Registered: 04/01/04
Posts: 2327
Loc: Dysart, Iowa
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Nice job! That is a quick way to come up with a very hard to find part. Nobody has intakes for chevy 4 cyl's.
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#68857 - 03/03/12 07:25 AM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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rayjay
Active BB Member
Registered: 03/02/12
Posts: 18
Loc: Atlanta GA
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Howdy ! New guy here. I am thinking about putting together a project car using the Chevy 153/181 family. The problem is - what body to use ????? The most common vehicle with the 153 is the old mail jeeps and I have been watching CL for a few months. I would prefer something smaller, sleeker and lighter but a mail jeep would do for initial tinkering.
The Vega - Monza, etc H-body cars would be an obvious choice but something a bit newer would be easier to find parts for. RX7's seem to be good candidates for American engines and auto trannies.
I thought about Plymouth Arrows as I am familiar with Mitsu motors and the Arrows, Colts and mini trucks came with 904 auto's but I really want to stay with Chevy's.
My plan is to eventually turbo the engine. How about some input ?
Thanks Ray
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#68863 - 03/03/12 01:31 PM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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rayjay
Active BB Member
Registered: 03/02/12
Posts: 18
Loc: Atlanta GA
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On the 151 they really took a lot of metal out of the parts. Compare the 151 crank to the 153. The earlier 181 cranks are fully counterweighted and make even the 153 crank look wimpy.
My next door neighbor used to race 2.3 Fords in ministock and he said that the 2.5's as used in the s10 don't hold up. The 153 and the 181 had great reputations in midgets back before the VW/Autocrafts took over. Even today many of the latest custom midget engines use the 153/181 architecture but set up for V8 heads.
Plus I want to stay with readily available v8 bellhousing pattern Powerglide or T350 or 200-4r trannies.
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#68867 - 03/03/12 06:55 PM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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rayjay
Active BB Member
Registered: 03/02/12
Posts: 18
Loc: Atlanta GA
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Just run errands around town and the occasional trip to the drag strip. I've never had a turbocharged car and also I would like to learn about fuel injection and programmable engine management systems. It would be cool to alter the "jetting" without getting gas on my hands or to modify the advance curve without welding and grinding and playing with springs or vac adv cans.
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#68870 - 03/04/12 06:25 AM
Re: GM 4 cylinders 151 153 181
[Re: Beater of the Pack]
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rayjay
Active BB Member
Registered: 03/02/12
Posts: 18
Loc: Atlanta GA
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I'm Turning an Offenhauser 3X1 for a 6 cyl into a 2X1 for a 4 cyl.
You are familiar with CopoRat's fuel injection conversion of a Clifford 6cyl 4bbl intake manifold. There is no reason that intake couldn't be modified like you have done to the Offy manifold, i.e. cut off one branch and block off the resulting hole. The throttle butterfly wouldn't be centered between the cylinders but many modern oem FI setups are the same way. You could have the throttle body be at the front or rear of the head depending on which one best suited your installation.
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#68871 - 03/04/12 06:38 AM
Re: GM 4 cylinders 151 153 181
[Re: efi-diy]
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rayjay
Active BB Member
Registered: 03/02/12
Posts: 18
Loc: Atlanta GA
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Have you considered a 2.9 Vortec 4 out of a colorado - they came with manual and automatics. Make 185 HP/190 #tq. EFI from the factory.
I have the 5 cylinder version in my colorado daily driver - on the highway it gets darn close to 30 mpg. And its 100% stock.
I checked it out via google and found that the 2.9 has ever feature I DON'T want. Alum block, alum head, balance shafts, chain drive overhead cams, etc.
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