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core plug

core plug

mejia64

Jeeper
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Location
florida
Vehicle(s)
1982 Jeep cj7 with 151ci/2.5L L4 VIN B for AMC
any body knows the size of the core plugs on the cylinder head, i have a 1982 Jeep CJ7 with 151ci/2.5L L4, VIN B for AMC and Head Cast #: 702
 
any body knows the size of the core plugs on the cylinder head, i have a 1982 Jeep CJ7 with 151ci/2.5L L4, VIN B for AMC and Head Cast #: 702
Where in the head are the plugs located? Do you have a pic? None of my books or manuals show plugs in the head. I attached a pdf manual.
 

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Where in the head are the plugs located? Do you have a pic? None of my books or manuals show plugs in the head. I attached a pdf manual.
is in the rear of the head the front have a Thermostat
  • Thermostat open to front
  • thanks for any help you can provide

cylinder head ( this is the back of the head ).webp
 
2 more pictures
 

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I'm having trouble finding that core plug. I would just take a measurement with calipers or check with a machine shop. Most machine shops have very good books and a large assortment of various plugs.
 
If you can't find the right sized plug , I have machined a freeze plug to fit an application when I couldn't find one that fit.
 
That 4 cyl is a GM engine used in a lot of autos of the time. Try looking up GM 4 cyl for parts
Thats what I looked up, could find block plugs but not cyl head plugs.
 

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