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Discussion Starter · #1 ·
Hey is it true that the I.D. tags on the front of the passenger side valve covers do have over/under sized bearings and bores in the factory motors?!...I just had purchased a motor(360)for my friends swap and I just happened to have a minute to see what that actual tag meant...it has a "B" on the top of the tag and a "3011npo" on the bottom. The 'b' on the top of the tag means that the cylendar bores are .010 thousandths over from the factory!...can anybody double check that for me...please...this was supposed to be a quick and cheap swap for my friend...now I cannot find .010 rings for this motor, I do not want the additional cost of the boreing and pistons for this motor. It only has 54,000 miles from an old gentleman we bought the Grand Wagoneer from. If anyone has a way of finding these rings please let me know...Thankyou.

Mark (OIIIIO) Langmotorsports(business)
1977/CJ7/Glasstub/460ciFord/C6Auto/NP205/4"LIFT/33'S
 

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Why not get the next size and file them. Then you know your gap will be perfect.

79/CJ-7/AMC360/TH400/Q-TRAC/d30/d44/33's/RS9000s/Herculiner/Pro-jection 2D/MSD/4.10s/lockrights
 

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'77 FSM sez the letter "B" stamped on the tag indicates cylinder bore 0.010" oversize.

Why drive a luxo-box SUV when you can lay in the dirt busting your knuckles under old iron? '77 CJ-5, '64 S2A Land Rover
 
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Discussion Starter · #4 ·
...Will I thought of that...but what about the oil rings?!?!
thanks badvibes thats what I thought...sigh...

Mark (OIIIIO) Langmotorsports(business)
1977/CJ7/Glasstub/460ciFord/C6Auto/NP205/4"LIFT/33'S
 
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Discussion Starter · #5 ·
...still looking for someone who has the name to a supplier of .010" rings for a 1988 grand wagoneer 360 V8...thankyou.....

Mark (OIIIIO) Langmotorsports(business)
1977/CJ7/Glasstub/460ciFord/C6Auto/NP205/4"LIFT/33'S
 

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why not go ahead and bore it .030? then you get to use standard off the shelf parts the kit from northern is $489



OzarkJeep

"Bare foot girls, dancing in the moon light..."
 
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Discussion Starter · #7 ·
...thought of that also but money is the issue for the friend of mine. I went to the dealership today and they found the rings from one of their supply houses. Thanks for the ideas though.

Mark (OIIIIO) Langmotorsports(business)
1977/CJ7/Glasstub/460ciFord/C6Auto/NP205/4"LIFT/33'S
 
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