1975 L48 Corvette Tune-up?
Thread Starter
Heel & Toe
Joined: Oct 2005
Posts: 24
Likes: 0
1975 L48 Corvette Tune-up?
Hello, looking for some suggestions and help. I have a 1975 Corvette Convertible with a Stock L48 engine that has 63000 original miles that I would like to do a full tune-up on. I will replace wires, cap, rotor, electronic pick-up, and plugs. I am not sure if I should use OEM parts or is there a prefered brand, open to all suggestion and recomendations, and if there is anything else that am I missing. Thanks for the help in advance. Bob
Le Mans Master
Joined: Oct 2010
Posts: 6,942
Likes: 850
From: melbourne florida
2023 C3 of the Year Finalist - Modified
some will say all delco or GM parts but Mallory m.s.d accell Davis. are all good and Morison and Taylor there are many excellent aftermarket ignition companies. pick your own poison.
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
Do not time her to factory specs. 75 was one of the most underpowered and emission choked vettes there was....ask me how I know! lol.
Read the timing sticky at the top of this forum and use that as a guide. Possibly need to buy a re curve kit for you dizzy. ( Mr Gasket spring set )
Will certainly make a difference.
Good luck!
Read the timing sticky at the top of this forum and use that as a guide. Possibly need to buy a re curve kit for you dizzy. ( Mr Gasket spring set )
Will certainly make a difference.
Good luck!
Team Owner
Joined: Sep 2006
Posts: 31,301
Likes: 4,389
From: Westminster Maryland
Hi bcp,
The ignition and heat shielding will be a nuisance BUT hang on to it ALL, (if it's there), even if you decide to leave some off when you re-assemble.
The next owner may be very glad you saved it.
Regards,
Alan
The ignition and heat shielding will be a nuisance BUT hang on to it ALL, (if it's there), even if you decide to leave some off when you re-assemble.
The next owner may be very glad you saved it.
Regards,
Alan
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Burning Brakes
Joined: Feb 2011
Posts: 849
Likes: 0
From: Woodland California
Pertronix
http://www.summitracing.com/parts/PNX-D8002/
This kit is the bomb. Add an advance kit for the distributor and you are set. http://www.summitracing.com/parts/SUM-G5212/
Some say you only really need the springs.
I've had this setup on my 454 for 7 years now, works great.
Ralph
http://www.summitracing.com/parts/PNX-D8002/
This kit is the bomb. Add an advance kit for the distributor and you are set. http://www.summitracing.com/parts/SUM-G5212/
Some say you only really need the springs.
I've had this setup on my 454 for 7 years now, works great.
Ralph
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
There is no need to replace the OEM GM electronics in the dist. Definitely plugs, good wires, and a decent replacement cap. Coil is an option.
A set of springs for the advance weights for more aggressive timing.
Before you do much, check the wear on the advance weight posts and repair or replace dist. Most suffer from lack of attention. Sometimes a good cleanup is just needed.
Filters and some attention to carb will probably be necessary.
A set of springs for the advance weights for more aggressive timing.
Before you do much, check the wear on the advance weight posts and repair or replace dist. Most suffer from lack of attention. Sometimes a good cleanup is just needed.
Filters and some attention to carb will probably be necessary.
