Engine block codes.
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Engine block codes.
ok so i have a 1978 F150 which i was TOLD had a 351m in it.. but further research of the block code located above the starter is saying i have a 400. so. i dont know what to buy parts for.. the code is D1AE 6015 AO. help?????? anyone please.
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Correction. AC as last two letters of the block code. and i read the casting numbers for the m blocks started with D7TE not sure if thats true or not. so how would i measure the stroke??? what would the difference in the two be? thanks for all advice. it is GREATLY needed
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From: Stanley, VA
3.50"=351, 3.98"=400.
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D7TE-6015-AB, -A1B, -A2B = Block casting numbers for 1977/79 F100/350 & 1978/79 Bronco with 351M/400 engines.
D1AE-6015-AC = Block casting number for 1971/74 Passenger Cars with 400 engines.
The engine code is the 4th digit of the VIN
1977/79 F100/350: B = 300 I-6 / G = 302 (F100/150 only) / H = 351M / J = 460 / S = 400.
351M/400 not offered for F100/350's prior to 1977, nor for Bronco's prior to 1978 / 400 introduced in 1971 Passenger Cars / 351M in 1975 Passenger Cars.
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Ok so now that I know what I have I am in need of a plate that goes between the engine and bellhousing . I am eating up my starter and flywheel when I try to crank it. Has 180 tooth flywheel. Got a plate on it but its for a automatic tranny. Mine is a four speed had to cut where the starter goes to make it work. So I'm not exactly sure what the problem is. Could you guys help with this? Suggestions???
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If the flywheel has been worn down even a little bit, it may cause even a new starter or drive gear to shear as well. I ran into this problem myself and had to change the flywheel. After changing the flywheel and adding a new starter gear everything works fine. As for any difference between the plate between the trans and motor, I'm not sure. But I would inspect the flywheel all the way around (if you haven't already) before buying anymore parts. Just a thought, good luck.
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Well i bought a new ring gear for the flywheel and drive gear for the starter about a month ago and had the ring gear pressed on and the drive gear put in my starter and it still grinds.also this is not the original starter. Before I got the truck it had a auto zone remanufactured one on it. Could this be part of the problem?
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335 Series- 5.8/351M, 6.6/400, 351 Cleveland
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Mar 16, 2006 03:41 PM
