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  '64 1/2 to '73 -- The Classic Mustang
  289 or 302?

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Author Topic:   289 or 302?
olsnake
Journeyman

Posts: 7
From: Ocala, FL
Registered: Nov 2001

posted 01-29-2002 04:39 PM     Click Here to See the Profile for olsnake     Edit/Delete Message   Reply w/Quote
Have a 68, was told by the previous owner that it dyno at 306 HP, which is exactly what the 67 289 HIPO put out. When I bought the car I was told it was a 302..
How can I tell the differencebetween a 302 and a 289?

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MidLifCrisis
Gearhead

Posts: 205
From: USA
Registered: Oct 2001

posted 01-29-2002 05:46 PM     Click Here to See the Profile for MidLifCrisis   Click Here to Email MidLifCrisis     Edit/Delete Message   Reply w/Quote
If the engine is original for the car, '68 is the first year for the 302 and it was available in 4 barrel only. '68 was the last year for the 289 and it was not avail as a 4 barrel only the 2 barrel. Engine code on the data plate should be a J for the 302 4 barrel.
As for visual differences between motors, I think the 289 had 289 molded in the head under the valve cover. Otherwise, I can't tell you. Maybe one of the guru's of the forum can assist. Charlie

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kcode
Gearhead

Posts: 2456
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99

posted 01-29-2002 11:25 PM     Click Here to See the Profile for kcode   Click Here to Email kcode     Edit/Delete Message   Reply w/Quote
Without totally disassembling the motor it will be difficult, especially if it has been modified. In 67-68 Ford used some 302 blocks with 289 rotating assemblies. The easiest way in to look at the crank on the first counterweight, if it has a cast 1M it a 289, if it is 2M its a 302.

Mike

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mustangs68
Moderator

Posts: 16604
From: Hampton,Virginia,USA MCA#39406 M&M #12
Registered: May 99

posted 01-30-2002 10:18 PM     Click Here to See the Profile for mustangs68   Click Here to Email mustangs68     Edit/Delete Message   Reply w/Quote
The 302 came in a 2V also in 1968 code was 6 I belive.
sam

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69maverick
Gearhead

Posts: 833
From: Thomaston,CT.
Registered: Jan 2001

posted 01-31-2002 08:05 AM     Click Here to See the Profile for 69maverick   Click Here to Email 69maverick     Edit/Delete Message   Reply w/Quote
Take a valve cover off and look for a casting # that says 302 or 289 in the head!but it still could be a 289! It can be a 2v-302 in 68! My son's stang was built this way!

------------------
Jim B. 70 Maverick Grabber clone 302,c4 auto
Weld drag lites,Holley 600,performer intake,comp cam,MSD ignition,2.5 " pipes Still needs paint!!

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mellowyellow
Gearhead

Posts: 5518
From: So. Fl.
Registered: Aug 2000

posted 01-31-2002 08:21 AM     Click Here to See the Profile for mellowyellow     Edit/Delete Message   Reply w/Quote
It can also be a 289 with 302 cast in the lifter galley. Late 289's were coming through with 302 blocks yet having the 289 crank and damper. A 289 has an obvious different damper than the one year only 68 302 damper. The original vin was stamped on block in C code mellowyellow car with 302 cast on block.

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