What motor is this ??
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From: SOUTH LYON
What motor is this ??
Hi i bought a 78 ford 150 4x4 with a motor i was told was a 429 from a 69 t-bird.Well ive got a nock in the motor and need to no what motor it is.Block # isC9VE-B Heads # is C8VE-E intake # is 3 c8se-9425-B F4 8j27 . And are these stock parts u think ?
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From: Missouri
Should be a 69 429. You need to check the numbers on the crankshaft to be sure as someone could have put the heads and intake on a 460. Off hand I can't remember the number so some one else will have to jump in.
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From: SOUTH LYON
I am pulling motor today.Ive never owned a big block is this a good one to keep ? This motor was only supposed to have like 6000 miles on re build lol can that be possable ?The guy i bought truck from said motor was built wene he got it but he redid heads himself .But im starting on the motor this morning ,brother inlaw is bringing his servise truck w/ boom on it so ill have it out today 
lol its been over 20 yrs since ive did this kinda thing doh thx guys Slick out
lol its been over 20 yrs since ive did this kinda thing doh thx guys Slick out
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From: PacNW
It's imposiible to say exactly what's in the motor as far as pistons, cam, etc. go since it's been rebuilt but as far as the basic block & heads go it's a "short deck" motor (10.300") with the small chamber (+/- 75 cc) heads. Ford called it a "ThunderJet" and in stock form the 4V version was rated at 385 hp with 11:1 comp. ratio.
The heads suffer from the typical Ford restrictive exhaust port configuration and a somewhat funky stock rocker arm setup which caused excessive wear on the retainers and therefore a number of dropped valves in high mileage engines but it can easily be converted to a standard stud/guideplate configuration if it wasn't when the P.O. went through the heads.
Overall it's a very nice engine to do a build up on since it has the closed chamber heads and with some massaging can be persuaded to pump out some very respectable HP & TQ numbers and still stay "streetable."
The heads suffer from the typical Ford restrictive exhaust port configuration and a somewhat funky stock rocker arm setup which caused excessive wear on the retainers and therefore a number of dropped valves in high mileage engines but it can easily be converted to a standard stud/guideplate configuration if it wasn't when the P.O. went through the heads.
Overall it's a very nice engine to do a build up on since it has the closed chamber heads and with some massaging can be persuaded to pump out some very respectable HP & TQ numbers and still stay "streetable."
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From: SOUTH LYON
ok motor is apart Block# is C9VE-B Heads# is C8VE-E Intake # is C8SE-9425 F4 Crank has 4U Piston rods are C8VE-A . I have 2 pistons that r messed up.Cylinder walls look good 7 and 3 was missing part of the top piston. Just the 2 pistons look bad and a few rings.So is this a ThunderJet motor ?And any 1 have any extra pistons lol Slick out
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The casting number on the intake manifold (C8SE-9425-B) matches a 68-69 Thunderbird. It was cast on September 27, 1968--which, doubtlessly, would make it for a 69 model year. C8VE-E heads are the casting number for standard 429 heads with a combustion chamber volume of 75.8 cc, 2.08-inch intake valves, 1.66-inch exhaust valves. C9VE-B block is a 10.30-inch deck height for 429 and 460 from 1968-1970. 4U crank is a 429 crank. (The 429CJ and SCJ and Police Interceptor heads had a casting number of C9VE-A or D0AE-H.)
I hope this helps you out some!
I hope this helps you out some!
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If you have never rebuilt one of these engines, Rick, you might wish to go to www.motorhaven.com and order "How to Rebuild Your Ford V8" by Tom Monroe. It covers the 351 C, 351 M, 400, 429, and 460. It was published by HP Books. It really is a helpful book.
Good luck to you on your rebuild! And, as Bill noted in his post, it is a respectable street motor that is a lot of fun.
Good luck to you on your rebuild! And, as Bill noted in his post, it is a respectable street motor that is a lot of fun.
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From: SOUTH LYON
thx bud and every thing posted is a big help.My brotherinlaw is doin the rebuilding , Im just takeing alot of it apart.After brother inlaw left i started 2 clean every thing starting with the block and while doing so i noticed alot of bad build up in water sleves around pistons, i mean alot and some pretty big chunks also ,so far ive got like 2 cups of it. I can see intere pretty good with a flash light. You think thats what happened 2 my motor?Pluged water jackets or restricted . That would be the reason i blew 2 pistons ? Like i said earlyer i shut truck doun fast wene i heard first sign of my motor prob.Cylinder walls need 2 be honed not bad at all.Is stock pistons 4 this motor aluminum ? Thx guys Slick out
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From: PacNW
If there's no obvious "mechanical" damage to the pistons from a valve dropping into the cylinder(s) or broken spark plug parts then a likely cause is detonation in the cylinders which could be caused by the rear cylinders getting too hot due to restricted coolant flow. If the P.O. rebuilt the engine with stock pistons the C.R. would be around 11:1 so it wouldn't take much to reach detonation temps depending on what grade gas you were running.
Virtually all modern automotive engine use aluminum pistons, most stock pistons are cast aluminum.
Virtually all modern automotive engine use aluminum pistons, most stock pistons are cast aluminum.
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Bill_Beyer has, again, brought up a very important point, namely, with an 11:1 CR, it will be very difficult to get pump gas with a sufficient octane to run that 429 W/O detonation. Too, just as he pointed out, the back two cylinders almost always run at a higher temp due to the restricted cooling air flow around those two. (Not just coolant cools an engine; air flow and oil cool it as well.)
Some few places sell higher-octane gasoline, but not many that I know of, and it IS expensive. You MIGHT wish to consider going to a smaller-domed piston and lowering the CR--especially in a 4X4 truck and if you will do towing, rock-crawling, or the like in it.
Some few places sell higher-octane gasoline, but not many that I know of, and it IS expensive. You MIGHT wish to consider going to a smaller-domed piston and lowering the CR--especially in a 4X4 truck and if you will do towing, rock-crawling, or the like in it.
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From: Saskatoon
Im Rebuilding basicaly the same engine, and with the old high compression heads (c9ve's). The pistons im using are speed pro hypereutectic STL-H535, they run about $30 each, and have a Compression ratio: 10.85:1 (72cc heads), 10.70:1 (73.5cc heads), 10.37:1 (77cc heads), 9.17:1 (92cc heads), 8.84:1 (97cc heads). The c8ve heads should be about 75 cc's puting you right where you need to be for pump gas.
I do have 8 used c8se pistons, I can send your way cheap If your interested.
I do have 8 used c8se pistons, I can send your way cheap If your interested.
Last edited by lockups; Sep 26, 2004 at 06:39 PM.
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From: SOUTH LYON
So i need to run a hi octane ? How hi of a octane do i need for this motor ?And with water jackets cleaned out will the C8SE pistons be ok with a high octane gas?Im kinda tryin 2 save some money cause i just bought this truck on ebay and im runnin out of money lol thx again Slick out