76 l-48 transmission
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Intermediate
Joined: May 2013
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76 l-48 transmission
I recently purchased a 1976 L48. The car engine is being pulled so that I can increase the horsepower, somewhere between 300hp and 400hp. Since the numbers are currently matching I would like to keep it a numbers matching car. The car is a 4 speed but it is not the Muncie. If I increase the horsepower am I going to have to change the current transmission or can I simply rebuild the current one. Also, can I upgrade the suspension without it affecting the numbers matching? Thanks in advance for any help.
Race Director
Joined: May 2006
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I guess it depends on what you intend to do with the car after it has the horse power increase. For street driving the transmission if it is in good shape should be fine. Numbers matching is something that is highly subjective. The fact that you are already making changes to the engine effect it's collectibility to some people while others may not care. So making changes to the suspension is of no consequence.
Melting Slicks
Joined: Jul 2009
Posts: 2,091
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I recently purchased a 1976 L48. The car engine is being pulled so that I can increase the horsepower, somewhere between 300hp and 400hp. Since the numbers are currently matching I would like to keep it a numbers matching car. The car is a 4 speed but it is not the Muncie. If I increase the horsepower am I going to have to change the current transmission or can I simply rebuild the current one. Also, can I upgrade the suspension without it affecting the numbers matching? Thanks in advance for any help.
Was a Saginaw 4 speed the base M20 four speed that year.?
If its a Saginaw M20 .....yup its got to go.
Last edited by LS4 PILOT; Oct 28, 2013 at 12:30 PM.
Team Owner
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From: Southbound
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Melting Slicks
Joined: Apr 1999
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From: Moon Twp. PA USA
My '76 L-48 came from the factory with a ST-10. Transmission number matches all other numbers on the car.
Case is stamped Borg/Warner (B/W).
Case is stamped Borg/Warner (B/W).
Last edited by glen242; Oct 28, 2013 at 07:54 PM.
