engine cast number?

83fox · May 27th, 2008, 12:31 AM

i have what looks to be a roller motor thats in my car. it has the spider in the lifter valley that holds down the dogbones and a efi distributer, and heres my dilema:

i need to know as much as i can about my particular block or not, whether is an H.O. motor or not. i could try the H.O. firing order but i would need a carburated distributer out of an 85, but because i dont know if its an HO or not, i dont know if i should get the cast iron geard one or the steel geard one

the sticker thats on the pass side valve cover is all ripped up and i can only see the number 7-221-R00 and it says E7...but its ripped up after that. i know the cylinder head casting numbers is on the underside of the head but i would like to know where i could find out the number for the block. any help would be greatly appreciated.

ryans88gt · May 27th, 2008, 11:53 AM

E7 = 1987.

If it is a roller block with a spider and dog bone, it should be HO firing order as best as I can remember.

If it is a E7 casting, then it is 1987 which is a HO block with forged TRW pistons and rods, cast crank. Should also have "xXx" cast on each side of the lifter valleys near the middle of the block just under the head surface.

83fox · May 27th, 2008, 07:53 PM

it does have xXx in the lifter valley on each side, kindof on the middle. i also have a motorcraft distributer number, i think its the stock one. the number is E4ZE-12131-AA, if that helps any. thanks a lot man.

86gtconvert · May 28th, 2008, 12:04 AM

c-60s d-70s e 80s are start of casting #s get #s on side of motor and look in a manual

ujslost · May 28th, 2008, 09:41 AM

HO or not. He can put in an HO style cam such as a letter cam and run the 351 firing order. Just the pistons might not be TRW if its a crown vic or grand marquis motors.

83fox · May 28th, 2008, 09:51 PM

Originally Posted by 86gtconvert

c-60s d-70s e 80s are start of casting #s get #s on side of motor and look in a manual

i have the manual to decode the numbers, but i need to know where on the block i can get the numbers. like near the starter or something like that. im gonna pull the distributer tomorrow and hopefully it has a steel gear, meaning its a damn good chance i have an HO motor. thanks guys

83fox · June 2nd, 2008, 08:15 PM

well i guess it dont matter too much now. at first it went right over my head, i didnt think to see if i could turn it by a wrench and i went to turn it today to put the distributer in today and it wouldnt move, so i have a seized motor. awesome. i think it was an 86 motor, it had 86 heads and distributor.

May 27th, 2008, 12:31 AM	#1
83fox Enthusiast 1983 mustang lx Join Date: Apr 2008 Posts: 504 iTrader: 0 reviews	engine cast number? i have what looks to be a roller motor thats in my car. it has the spider in the lifter valley that holds down the dogbones and a efi distributer, and heres my dilema: i need to know as much as i can about my particular block or not, whether is an H.O. motor or not. i could try the H.O. firing order but i would need a carburated distributer out of an 85, but because i dont know if its an HO or not, i dont know if i should get the cast iron geard one or the steel geard one the sticker thats on the pass side valve cover is all ripped up and i can only see the number 7-221-R00 and it says E7...but its ripped up after that. i know the cylinder head casting numbers is on the underside of the head but i would like to know where i could find out the number for the block. any help would be greatly appreciated.

May 27th, 2008, 11:53 AM	#2
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 4,737 iTrader: 0 reviews	E7 = 1987. If it is a roller block with a spider and dog bone, it should be HO firing order as best as I can remember. If it is a E7 casting, then it is 1987 which is a HO block with forged TRW pistons and rods, cast crank. Should also have "xXx" cast on each side of the lifter valleys near the middle of the block just under the head surface. __________________ 88 GT CHI headed 351w 10.8 @ 125 - still figuring it out. 03 Cobra 2.3 whipple 10.7 @ 129 - sold it 04 Mach 1 12.7 @ 109 mostly stock - sold it 89 LX procharged 302 515 hp 497 ftlbs 10.7 @130 mph - sold it

May 28th, 2008, 09:41 AM	#5
ujslost MM Fanatic Join Date: Mar 2007 Location: Albertville, AL Posts: 3,920 Blog Entries: 1 iTrader: 1 reviews	HO or not. He can put in an HO style cam such as a letter cam and run the 351 firing order. Just the pistons might not be TRW if its a crown vic or grand marquis motors. __________________ 1986 Mustang GT t-top time piece!

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May 27th, 2008, 07:53 PM	#3
83fox Enthusiast 1983 mustang lx Join Date: Apr 2008 Posts: 504 iTrader: 0 reviews	it does have xXx in the lifter valley on each side, kindof on the middle. i also have a motorcraft distributer number, i think its the stock one. the number is E4ZE-12131-AA, if that helps any. thanks a lot man.

May 28th, 2008, 12:04 AM	#4
86gtconvert Regular 1986 mustang gt convert Join Date: Apr 2008 Location: wyoming Posts: 72 iTrader: 0 reviews	c-60s d-70s e 80s are start of casting #s get #s on side of motor and look in a manual

June 2nd, 2008, 08:15 PM	#7
83fox Enthusiast 1983 mustang lx Join Date: Apr 2008 Posts: 504 iTrader: 0 reviews	well i guess it dont matter too much now. at first it went right over my head, i didnt think to see if i could turn it by a wrench and i went to turn it today to put the distributer in today and it wouldnt move, so i have a seized motor. awesome. i think it was an 86 motor, it had 86 heads and distributor.

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