Need a crankshafts

[Peter1962]

Hi everybody,

I recently bought a C2 1966. After a few weeks the engine began to shake and made a terrible sound. I stopped right away, but it was to late said my garage, the engine had died. Now we are going to rebuild the engine and that's why I need a new crankshafts.

But can anyone tell me which crankshafts I need for my 327 block.
I want to buy a new one, but don't no where I can get one.
I look by Ecklers, Corvette Central en Zip, but I can't find a crankshafts for my 1966 vette. I have to addmit that I don't know which crankshafts will fit in my 327 block (block is not matching) Do you know where I can buy one and which one I need?

Peter

 

[Tom Bryant]

Hi Peter,

Some of the last 327s were large journal like the 350. We will need to determine if your engine is a small or large journal 327. Easy enough if you have the engine apart but if you don't, can you give us the casting date and stamping numbers? Crankshaft kits are available from many sources and in all price ranges.

Here's a typical kit from Speed-O-Motive. They ship anywhere.

http://www.speedomotive.com/327_stock_crank_kit.htm

Tom

 

[brumbach]

Tom:

I'm in the process of building a standard L79 (casting date sept 64). I too need to purchase the correct crank, pistons, etc. In your opinion, is Speed-O-Motive as good a source as any? I certainly like their price for the crank kit.

Thanks,

Bill

Hi Peter,

Some of the last 327s were large journal like the 350. We will need to determine if your engine is a small or large journal 327. Easy enough if you have the engine apart but if you don't, can you give us the casting date and stamping numbers? Crankshaft kits are available from many sources and in all price ranges.

Here's a typical kit from Speed-O-Motive. They ship anywhere.

http://www.speedomotive.com/327_stock_crank_kit.htm

Tom

 

[Hib Halverson]

There area number of sources for 327 cranks in the U.S., however, as said above, as the engine in your 66 is not original, you'd better first determine if your 327 is a 62-67 or a rare 68 327 with a large-journal crank.

Another thing...what is wrong with the existing crankshaft? If it's a case of normal wear or even a spun bearing, very often cranks can be machnined undersized and installed with undersized bearings. .010-in, .020 and even .030 under are common.

 

[Tom Bryant]

Bill,

Speed-O-Motive has been around forever and has a very good reputation.

Also try Ohio Crankshaft. You may need to contact them for your application. Not too far from Kentucky.

Ohio Crankshaft

I'm not too sure of the availability of correct domed pistons for your L79. They should be able to supply a forged or cast piston in the correct CR for your engine though.
http://www.ohiocrank.com/index.html
NAPA and other auto parts stores ar also a good place to shop for crankshaft kits. Shop around. You may save some money.

Like Hib says I'd have the crank and rods checked and re-machined if possible to save some $$. Most parts store crank kits are re-manufactured and come with a warranty

Tom

 

[brumbach]

Thanks, Tom.


Bill

Bill,

Speed-O-Motive has been around forever and has a very good reputation.

Also try Ohio Crankshaft. You may need to contact them for your application. Not too far from Kentucky.

Ohio Crankshaft

I'm not too sure of the availability of correct domed pistons for your L79. They should be able to supply a forged or cast piston in the correct CR for your engine though.

NAPA and other auto parts stores ar also a good place to shop for crankshaft kits. Shop around. You may save some money.

Like Hib says I'd have the crank and rods checked and re-machined if possible to save some $$. Most parts store crank kits are re-manufactured and come with a warranty

Tom

 

[coves4me]

Peter,

I recently rebuilt my 62 340HP engine because the crankshaft and bearings were toast. I got my crank from Atlanta Crankshaft Exchange in Atlanta, Georgia. I purchased it off ebay, but I don't believe they support a store anymore on that site. I would do a google on their name and contact them. The crank for your 66 should be a small journal application which is 2.00 inches in diameter if not turned down. You'll also need small journal connecting rod bearings of the appropriate diameter to fit the crank. ACE sent me a beautiful crank that had been turned down .010 inches. Very nice work and reasonable priced. Well packaged. Good luck.

 

[motorman]

Hi everybody,

I recently bought a C2 1966. After a few weeks the engine began to shake and made a terrible sound. I stopped right away, but it was to late said my garage, the engine had died. Now we are going to rebuild the engine and that's why I need a new crankshafts.

But can anyone tell me which crankshafts I need for my 327 block.
I want to buy a new one, but don't no where I can get one.
I look by Ecklers, Corvette Central en Zip, but I can't find a crankshafts for my 1966 vette. I have to addmit that I don't know which crankshafts will fit in my 327 block (block is not matching) Do you know where I can buy one and which one I need?

Peter

check the stamp pad and post here to see what you really have

 

[66 Red Rocket]

Question

How do you resto guys run 11 to 1 compression in your big and small blocks withs todays 92/93 octane gas? What about the stock heads not having hardened exhaust valve seats with todays unleaded gas? John

 

[JohnZ]

My all-original/unrestored '69 Z/28 has 11:1 compression, and runs just fine on pump premium; the "30-30" cam has pretty extreme duration and overlap, with a late-closing intake valve, which reduces the dynamic compression ratio. If I pulled that cam and replaced it with a standard "929" hydraulic cam without changing anything else, I'd probably have to run race fuel due to the increased dynamic compression ratio resulting from less duration and overlap and an earlier-closing intake valve.

Valve seat recession without hardened seats is essentially a myth unless you're pulling a loaded trailer at 100mph all day long or endurance racing; hardened seats aren't necessary for normal operation.