GM 350 create motor
Thread Starter
Pro
Joined: May 2001
Posts: 571
Likes: 5
From: usa
GM 350 create motor
just got a 73 and after getting a few thing straightened out. I took it for a ride and was quite surprised when I dumped the clutch and she laid side ways and smoked the tires 
. my last 73 L48 couldn't even come close.
is there any way to check the spec of this create engine
. my last 73 L48 couldn't even come close.is there any way to check the spec of this create engine
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
just got a 73 and after getting a few thing straightened out. I took it for a ride and was quite surprised when I dumped the clutch and she laid side ways and smoked the tires . my last 73 L48 couldn't even come close.
is there any way to check the spec of this create engine
. my last 73 L48 couldn't even come close.is there any way to check the spec of this create engine
Yeah, ask the seller what the specs are...................
Advanced
Joined: Dec 2012
Posts: 80
Likes: 0
From: Newman Lake Wa
While trying to find out what my stock ratio was, information on the internet was always wrong. Some said .355, some higher. I found mine in the owners manual while re carpeting. Different ratios are available. I will write again with a tach/speed after I check it.
Ray
Ray
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
GM makes a bunch of different crate motors could be anything. Some of them seem pretty nice. Not that you couldnt do something cheaper, its that the stuff is brand new with a good warranty. Havent had anything done by a speed shop thats held up like an oem type piece would, probably why they dont build that much power into them.
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Le Mans Master
Joined: Oct 2007
Posts: 7,453
Likes: 976
From: RI, Now Franklin/Nashville TN
Could be any variation of the GM crate motor...some are pretty stout..some are not (290 Gross HP version is not better than a stock L-82 250 Net HP). FWIW...Just about any car with a stick, if you drop the clutch at a high enough RPM will spin the tires, regardless of rear gears.
I had a 75 Chevy Monza 4 speed with a 4 cylinder engine that would spin the tires with enough clutch RPM dumps as well as my 1988 Mustang 5.0 LX..220 net HP with 2.73 gears and a 5 speed...it would smoke the tires mercilessly with minimal RPM clutch drops...
I had a 75 Chevy Monza 4 speed with a 4 cylinder engine that would spin the tires with enough clutch RPM dumps as well as my 1988 Mustang 5.0 LX..220 net HP with 2.73 gears and a 5 speed...it would smoke the tires mercilessly with minimal RPM clutch drops...