1978 Pontiac Grand Prix SJ 350 Olds build

[350gp]

Where are you located as someone on here close to you maybe able to come over and give you a hand.

san antonio tx

 

[350gp]

G body Cutlass for the Olds 350 for headers. What is the big number by #1 and #8 spark plugs?

Im sorry, I couldnt find what you were talking about but i took these pictures if it helps. not too sure though

 

[olds307 and 403]

That is a 73 to 76 motor. It will have around 8 to 1 compression and the usual .400" lift cam stock. Those #8 heads have 77 to 78cc chambers measured by me, spec is 79. There is a restriction just under the exhaust valve. If a bowl hog cutter is used, they flow as well as early heads. Flat top pistons will give 9 to 1. This is assuming this motor is stock inside. Many still are because these motors were very durable and very choked in stock form.

 

[350gp]

That is a 73 to 76 motor. It will have around 8 to 1 compression and the usual .400" lift cam stock. Those #8 heads have 77 to 78cc chambers measured by me, spec is 79. There is a restriction just under the exhaust valve. If a bowl hog cutter is used, they flow as well as early heads. Flat top pistons will give 9 to 1. This is assuming this motor is stock inside. Many still are because these motors were very durable and very choked in stock form.

Thank you, this helps a lot. This is going to sound maybe dumb but how can I get my car at least cranking. I dont think my wiring for anything is set up correctly because my father worked on it so long ago so there's a lot missing or just not connected. I've been doing some research but I want to be exactly sure i dont mess anything up. If anyone has a wiring diagram or can perhaps explain how all of that works for this car that would be great. and I thank you all for this cool learning experience

 

[350gp]

Thank you, this helps a lot. This is going to sound maybe dumb but how can I get my car at least cranking. I dont think my wiring for anything is set up correctly because my father worked on it so long ago so there's a lot missing or just not connected. I've been doing some research but I want to be exactly sure i dont mess anything up. If anyone has a wiring diagram or can perhaps explain how all of that works for this car that would be great. and I thank you all for this cool learning experience

Basically when i turn the key, nothing happens at all, no click, no crank, no start

 

[olds307 and 403]

Make sure the negative battery cable is attached to the block. Positive to the big terminal on the starter. Also a couple of accessory wies including a fusible link go on the big terminal as well. There is a small wire to the solenoid.