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Kirkham Motorsports

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  • 2 Post By blykins
  • 1 Post By blykins
  • 1 Post By peterpjb
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  #1 (permalink)  
Old 06-23-2018, 11:00 AM
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Default For you 289 guys....

I just got in a really nice C5 6-bolt 289 block that is currently standard bore, along with a standard 289 crankshaft and a set of 289 rods.

If you're wanting a period-correct short block for your 289 replica, this would be a really nice foundation:

*Block baked and steel abrated, honed with torque plates, mains align honed, square decked
*Crankshaft machined
*Rods reconditioned
*Clevite main/rod bearings
*Racetec forged pistons with a modern Mahle metric ring pack
*Felpro rear main seal
*Durabond camshaft bearings
*Block painted, brass freeze plugs installed
*Custom Lykins Motorsports solid flat tappet camshaft
*Ford Racing double roller timing set with ARP camshaft bolt
*Rotating assembly balanced
*Short block assembled, camshaft degreed

$3299

A small deposit would put your name on the parts and on my build list.

I also have a nice set of 289 cylinder heads that could be freshened up to make a long block.
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Old 06-23-2018, 11:20 AM
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Period correct is a five bolt block, no?
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Old 06-23-2018, 11:48 AM
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No....both 5 and 6 bolt blocks were used.

And BTW, I said "period correct", not numbers matching. A factory 289 block would be more "correct" than a 302 or a 351.
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Old 06-23-2018, 12:06 PM
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to be period correct an automatic transmission should be used with a 6-bolt 289 😉
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Old 06-23-2018, 12:11 PM
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Yes sir, that is a true statement.

But yet again, the term "period correct" was never meant to be examined with a microscope....
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Old 06-23-2018, 01:54 PM
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Quote:
Originally Posted by blykins View Post

And BTW, I said "period correct", not numbers matching.
Hmmmm, for an additional fee could we get it all restamped so it was "numbers matching?"

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Old 06-23-2018, 02:15 PM
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Quote:
Originally Posted by patrickt View Post
Hmmmm, for an additional fee could we get it all restamped so it was "numbers matching?"

It'd be hard to "restamp" a cast number into a block......

This one has a C5 engineering number but has a 1967 date code.
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Old 06-28-2018, 05:28 AM
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No, my 1965 Comet Calentie had a 6 bolt block that came from the factory in it.

Ron

Quote:
Originally Posted by 1985 CCX View Post
Period correct is a five bolt block, no?
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Old 06-28-2018, 07:44 AM
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Quote:
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No, my 1965 Comet Calentie had a 6 bolt block that came from the factory in it.

Ron
obviously 1985 ccx means period correct for a COBRA ...

in fact only about sixty 289 cobras were equipped with six-bolt engines, but all of them with automatic transmissions,

all 289/T10 Cobras were equipped with five-bolt engines
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Old 06-28-2018, 09:15 AM
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Quote:
Originally Posted by peterpjb View Post
obviously 1985 ccx means period correct for a COBRA ...

in fact only about sixty 289 cobras were equipped with six-bolt engines, but all of them with automatic transmissions,

all 289/T10 Cobras were equipped with five-bolt engines
13 Cobras originally equipped with automatic transmissions. All built near the end of production run.
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Old 06-28-2018, 12:55 PM
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Quote:
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13 Cobras originally equipped with automatic transmissions. All built near the end of production run.
Larry
15 each Cobras were finished new with 1965 model specification Fairlane six bolt High Performance 289s assembled specifically for use with automatic transmissions. Those 15 Cobras were the production run of automatic transmission cars. The engines and special High Performance C4 transmissions went together. It's all in the Registy. (Not to be confused with CSX2435 which was the prototype for both automatic transmission and factory air conditioning. We do not know if that car got a five or six bolt engine at the current time. Automatic transmission fitted production Cobras went ahead while the factory air conditioning idea died. ) Ford stopped assigning serial numbers to HP289 engines as 1964 model year HP289 engine ended circa late June 1964. Shelby American gave these engines identification numbers.

It is known for sure that 42 new Cobras were finished with odd ball five bolt engines assembled after the start of six bolt engine production. Ford did not serial number them but Shelby American gave them individual numbers. These engines contained both 1964 and 1965 model year parts. This is not in the Registry. I didn’t know it myself until we bought a car with one of these engines and I started researching them.

Five bolt 221/260/289 engines were made for 1962-64 model years. Six bolt 289 engines were made for the 1965-67 model years. All Cobras except those 15 with automatic transmissions had 1962-64 model year engines (XHP-260 and HP260 made during 1962, 1963 model year HP289s, 1964 model year HP289s, and the odd 42 engines tagged as being 1964 model year engines but containing some 1965 model year parts).

That’s the short version. My decades in collecting research notes on “Cobra engines” is currently 76 pages long.
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Old 06-28-2018, 01:00 PM
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Quote:
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13 Cobras originally equipped with automatic transmissions. All built near the end of production run.
Larry
sorry for posting bs
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Old 06-28-2018, 01:05 PM
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Quote:
Originally Posted by peterpjb View Post
sorry for posting bs
Man, if I had to say that every time I... ahhh, never mind.
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Old 06-28-2018, 01:27 PM
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Quote:
Originally Posted by Dan Case View Post
15 each Cobras were finished new with 1965 model specification Fairlane six bolt High Performance 289s assembled specifically for use with automatic transmissions. Those 15 Cobras were the production run of automatic transmission cars. The engines and special High Performance C4 transmissions went together. It's all in the Registy. (Not to be confused with CSX2435 which was the prototype for both automatic transmission and factory air conditioning. We do not know if that car got a five or six bolt engine at the current time. Automatic transmission fitted production Cobras went ahead while the factory air conditioning idea died. ) Ford stopped assigning serial numbers to HP289 engines as 1964 model year HP289 engine ended circa late June 1964. Shelby American gave these engines identification numbers.

It is known for sure that 42 new Cobras were finished with odd ball five bolt engines assembled after the start of six bolt engine production. Ford did not serial number them but Shelby American gave them individual numbers. These engines contained both 1964 and 1965 model year parts. This is not in the Registry. I didn’t know it myself until we bought a car with one of these engines and I started researching them.

Five bolt 221/260/289 engines were made for 1962-64 model years. Six bolt 289 engines were made for the 1965-67 model years. All Cobras except those 15 with automatic transmissions had 1962-64 model year engines (XHP-260 and HP260 made during 1962, 1963 model year HP289s, 1964 model year HP289s, and the odd 42 engines tagged as being 1964 model year engines but containing some 1965 model year parts).

That’s the short version. My decades in collecting research notes on “Cobra engines” is currently 76 pages long.
Sorry... yes, 15! That's what I get for not looking at my notes and posting when I'm at work!
Larry
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Old 06-29-2018, 09:27 AM
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I have a 5bolt block in my car & on the shelf. I don’t think I paid more than $350 for either of them, 10 years ago. Prices are getting a little silly.
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Old 06-29-2018, 12:33 PM
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There are still lots of the five bolt engines around. They can be found complete for $350 or less.
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Old 06-29-2018, 12:36 PM
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Quote:
Originally Posted by MAStuart View Post
There are still lots of the five bolt engines around. They can be found complete for $350 or less.
... or broken for even less.
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Old 06-29-2018, 12:48 PM
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Could you destroke it and make it a 260?
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Old 06-29-2018, 02:05 PM
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Heck I have 2 260 builders I would let go for $200 each. I would trade both of them for that lump of aluminum Rodknok has under his hood.
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Old 06-29-2018, 02:23 PM
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Heck I have 2 260 builders I would let go for $200 each. I would trade both of them for that lump of aluminum Rodknok has under his hood.
Call me. My number is 1-800-GOT-JUNK.
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