330noob

hello i am new to olds forum and i have a 1965 olds f785 with a 330 automatic trans. i am rebuilding my 330 and i was wondering were i could get parts and what should i replace? should i bore it over or can i leave it as is and just replace the rings, bearings, and camshaft because i want a little more power. can anyone help me. it would be my first rebuild. thanks!

olds425

You need to have the bores measured by a machine shop to verify if it needs bored . I would only bore it if needed, that way you can usually rebuild it again if need be. Have the machine shop check clearances and hot tank the engine to clean it. You may get by with rings , bearings and cam. But have all the clearances checked by a machins shop. I would also purchase the shop manual for your car, it will help you also. When you assemble the engine keep it really clean and take your time. Good luck!

330noob

ok thanks for the quick reply. and do you know were i could purchase a shop manual for a 1965 f85? thanks.

joe_padavano

It's called a Chassis Service Manual and they are on Ebay regularly. I prefer used originals to repros.

330noob

is there a shop manual for just the f85 or is that it? Is that book a universal?

1969w3155

The Chassis service manual will cover all Olds models for that particular year.

Drachen

Hello all. I am new to this forum, however I've been on several other fourms (AWCC, Carnuts, Tripleplate) under the same user name.

I have found a '67 Cutlass for sale, which the current owner and I are currently haggling over the sell price. The car currently has an Olds 350 under the hood (incorrect engine for that model year) however the owner has the original 330 which has been stripped down to the block. Unfortunately for me, the current owner bought the car with the 330 already out of the car, so he does not know why it was swapped out for the 350. We are going to have the block and heads of the 330 magnafluxed sometime in the next two weeks to see if the engine is worth rebuilding.

I have a question regarding valve seats. I am getting conflicting info on whether hardened valve seats are required to run a car on modern unleaded fuel. One mechanic I spoke to says that Oldsmobile engines in the 60s were made from an alloy that was tougher than what was used by other makers and the hardened valve seats are not required, however another mechanic (a younger guy) says that without the hardened valve seats, the area around the valves will wear and eventually cause the engine to fail.

I've also found conflicting info on the internet, but most what I read states that the hardened seats are not necessary unless I plan on running the car at high revs (i.e. racing or towing) on a regular basis.

Anyone here have any insight?

Thanks!

66ninetyeightls

As far as what Oldsmobile used for seats back in the day I will wait for other more experienced folks to answer that question.....

I would replace them with hardened seats in my personal opinion. Especially if I was having the head rebuilt anyway. Its just peace of mind and you don't need to worry about using fuel additives.

scubastever

there is an additive you can add to the tank, to help reduce valve seat wear. i forget the name, but used to buy it from NAPA/UAP