Yeah, I just picked up a 350 4-bolt block and I had a couple of questions. Will the oil pan from my 305 TBI fit on to this 350. And one more. This other source has some 75cc heads for sale for pretty cheap. What cc are y stock heads? So would those be better or worse? Thanks, sorry for all the q's I am really excited. L8er you all,

 

What year is your 350? Chevy made at least three different pans for the small block in the early days depending on chassis. If your years are not the same contact the dealer or some other aftermarket supplier to get the proper oil pan.

 

Thanks, I honestly can't tell you which year it was. But thanks for the info, I will check into that. later,

 

also, did anyone know my stock 305 TBI cylinder head combustion chamber size? Thanks,

 

Your 305 chambers are 58cc. You don't want those heads anywhere near your 350, for several reasons. Chamber size is about #3 on that list.

Your 305 oil pan will only fit if the 350 is one-piece rear main seal. Very likely, it is not. Even older 350s, like '78-older, also had the dipstick on the driver's side, so that is something you need to consider. Stock exhaust manifolds aren't intended to be used with driver's side dipsticks, but since you intended to put headers on when you put in the 350, that won't be a problem.

You can get an idea of the vintage of the 350 by getting the casting number off of it, and going to www.mortec.com.

 

cool, how much does an oil pan run for these day. I will go for the regualer size, no deep sump or anything. Also, what did you mean by #3 on the list? You mean, out of the 3 (58, 64, 78) that is the last one I would want? Well, thank you,

 

No, that was tongue-in-cheek. The 305 TBI heads are swirl ports, have small ports, and small chambers. So, chamber size is "#3" on the list of reasons not to use them on a 350.

Pans aren't too expensive. You should be able to pick one up for less than $40, even less at a swap meet.

 

Shweet! I knew they weren't that much but the only prices that I have seen for them is in the summit magazine and they were like $150. But of course that was for a diamond coated, chromed and polished, With a buby insert for the drain plug. *bling-bling*

 

Rather than using mortec.com (though they're pretty good) for the casting number, just post it here and I'll bust out my book of casting numbers... I got it for $20, and it's got pretty much every Chevy V-8 block/crank/cam/heads/manifold casting number under the sun. I love using this thing, I'd recommend it to anyone who often works with older engines.

 

Ok, the casting number is 3970010. It is a 4-bolt. Could you tell me what year it is? And any other information. Thanks for steepin up.

 

That's a popular block #... there's one sitting in my driveway right now.

This block was used for both the '69 Camaro 302 and a number of 350's. The four-bolt main means it can be any of the following:

late '69 Vette
69-79 truck
69-79 passenger car (Chevelle, Nova, Camaro, Monte Carlo)
70-72 Vette

Odds are it's a truck block; the cam and heads would give you a better idea (that's how I determined mine was a truck block), but I assume you don't have those. Hope this helps.

 

Yeah I saw that 302 camaro option on Mortec. and I was like, that would be shweet! It is most likely out of a truck. But you are right, I don't have the heads. The guy said he had it in his 87 pick up, but that it wasn't the original block. Thanks for you research.

 

Hey, no problem... like I said, I love using this book.