RE: 2 bolt or 4 bolt main in a 74 L48 engine

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RE: 2 bolt or 4 bolt main in a 74 L48 engine

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Corvette Forums >> Corvette Models >> Corvette C3 Forum >> RE: 2 bolt or 4 bolt main in a 74 L48 engine

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RE: 2 bolt or 4 bolt main in a 74 L48 engine - 11/30/2007 7:08:49 PM

73shark

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The L48s had the narrow, six inch balancer and the L82s had the thick, eight inch one. I think that hold across the board for most high performance and special high performance small blocks.

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Post #: 11

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 11/30/2007 10:27:45 PM

1974corvetteowner

Posts: 215
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so is there any realtionship between the smaller balancer usally being on 2 bolts main and larger on 4 bolt main???

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Post #: 12

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/1/2007 9:54:03 PM

73shark

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None other than that as far as I know.

I'm in mourning right now.

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Post #: 13

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/1/2007 10:57:16 PM

1974corvetteowner

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quote:

ORIGINAL: 73shark

None other than that as far as I know.

I'm in mourning right now.

Why are you in mourning? what happened?

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Post #: 14

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/2/2007 9:53:25 AM

73shark

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Check my avatar. My Tigers got beat bad last nite.

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So many toys, so little time

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Post #: 15

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/2/2007 9:56:31 AM

1974corvetteowner

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lol o ok

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Post #: 16

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/2/2007 10:57:32 AM

1974corvetteowner

Posts: 215
Joined: 8/11/2005
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Ok back to the topic at hand any way to figure out if it is 2 or 4 bolt main from the serial number off the front passenger side of the engine block? Well my serial number is 1z1775352 (i think a little hard to see)

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Post #: 17

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/2/2007 4:40:47 PM

78buckshot

Posts: 653
Joined: 1/28/2007
From: Michigan
Status: offline

The stamped in engine number won't tell you if it's two or four, only that the engine was originally installed in a particular model with the tranny type and in our case if it's a L48 or L82. Are you just curious as to what you have or are you planning on building the motor up? A two bolt bottom end can stand up to 500 hp if everything is in proper order.

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Post #: 18

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/2/2007 8:10:50 PM

1974corvetteowner

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Joined: 8/11/2005
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Well I am just curious now but in the future I plan on building up the motor

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Post #: 19

RE: 2 bolt or 4 bolt main in a 74 L48 engine - 12/2/2007 8:23:51 PM

blknblu68

Posts: 207
Joined: 4/4/2007
Status: offline

well with todays technoligy they can splay the 2 bolt blocks making them a stronger 4 bolt than a factory built one so i wouldnt sweat it bud!!