What Engine???
Thread Starter
Heel & Toe
Joined: Jun 2005
Posts: 15
Likes: 0
From: St. Boni MN
What Engine???
We are having a hell of a time identifing this motor in our 1969 Corvette. 
Interior says it's supposed to be a 350 ci 350 hp motor. 
The pad numbers are:
TO625HN
18J302353
82396124
Block Casting (rear drivers side) 3914660
The VIN is 194679S726516.
Can anyone help? Is this a real pro hack job? What car is this motor from? The numbers don't match obviously. I tried to use our corvette manual yesterday to set the timing and dwell but didn't know what engine it is! So I had to use my "seat of the pants" to adjust the timing until it ran like a raped ape..
Thanks in advance oh great ones!
Interior says it's supposed to be a 350 ci 350 hp motor. The pad numbers are:TO625HN
18J302353
82396124
Block Casting (rear drivers side) 3914660
The VIN is 194679S726516.
Can anyone help? Is this a real pro hack job? What car is this motor from? The numbers don't match obviously. I tried to use our corvette manual yesterday to set the timing and dwell but didn't know what engine it is! So I had to use my "seat of the pants" to adjust the timing until it ran like a raped ape..
Thanks in advance oh great ones!
Last edited by D.T.; Jun 3, 2005 at 08:40 AM.
Melting Slicks
Joined: Jan 2005
Posts: 3,028
Likes: 0
From: Madison Ms
3914660 1968 327 2 Bolt
http://www.stingray.nu/index2.htm
Looks like a 327 from a 1968 chevy......
The 69 wasn't offered with a 327......
http://www.stingray.nu/index2.htm
Looks like a 327 from a 1968 chevy......
The 69 wasn't offered with a 327......
Last edited by MsVetteMan; Jun 3, 2005 at 12:39 PM.
Pro
Joined: Aug 2001
Posts: 683
Likes: 0
From: mississauga ON
Block appears to be a 68 327 300HP. Built June 25.
However, may not be out of a Vette. I think the Vette
motors should be an HE or HO....not HN.
The block was also used for a low Horse motor (210HP)
I see by your vin 194679 - you have a 1969 vert.
However, may not be out of a Vette. I think the Vette
motors should be an HE or HO....not HN.
The block was also used for a low Horse motor (210HP)
I see by your vin 194679 - you have a 1969 vert.
Last edited by LT4Coupe; Jun 3, 2005 at 12:49 PM.
Safety Car
Joined: Dec 1999
Posts: 3,577
Likes: 822
From: PA
It definitely came out of a Chevrolet product other than a Corvette... I guarantee that. The VIN derivative of 18J302353 tells us that. The "J" indicates an assembly plant other than St. Louis which is where all Corvettes were assembled in 1968-1969.
I don't have my references handy at the moment but my guess is that it is a 327/300 engine assembled at Tonawanda (NY) on June 25 and installed in a 1968 (model year) full size Chevrolet (Biscayne/Belair/Impala). Might turn out to be a truck application as well...
Regards,
I don't have my references handy at the moment but my guess is that it is a 327/300 engine assembled at Tonawanda (NY) on June 25 and installed in a 1968 (model year) full size Chevrolet (Biscayne/Belair/Impala). Might turn out to be a truck application as well...
Regards,
Race Director
Joined: Apr 1999
Posts: 15,127
Likes: 476
From: NM
Originally Posted by D.T.
We are having a hell of a time identifing this motor in our 1969 Corvette. Interior says it's supposed to be a 350 ci 350 hp motor. The pad numbers are:
TO625HN
18J302353
82396124
Block Casting (rear drivers side) 3914660
The VIN is 194679S726516.
Interior says it's supposed to be a 350 ci 350 hp motor. The pad numbers are:TO625HN
18J302353
82396124
Block Casting (rear drivers side) 3914660
The VIN is 194679S726516.
1965 327/375hp manual trans in the Vette
1968 327 with Pwrglide, in the full size & Chevy II
1969 327 with tur 350 in the full size Chevy
1969 350/300hp with tur hydramatic in full size
You did not give the casting date so cannot determin the year.
The block casting number, 3914660, is for a '68 327.
So I would have to say that your engine came from the factory back in '68 in either a full size chevy or a Chevy II and was equiped with the two speed powerglide transmission.
tom...
Safety Car
Joined: Dec 1999
Posts: 3,577
Likes: 822
From: PA
Originally Posted by Tom73
So I would have to say that your engine came from the factory back in '68 in either a full size chevy or a Chevy II and was equiped with the two speed powerglide transmission.
While there were several plants that produced Chevy IIs in the early 1960s, by 1968, all Chevy II (Nova) production took place at Willow Run. The Willow Run plant used "W" as their plant code... Since this engine is stamped with a "J" I think that we've narrowed it down to 1968 full size Chevrolet with a 327/Powerglide.
If I get the chance tonight, I'll look up the "J" code and the first "3" that follows it... This should give us the location of the assembly plant for the vehicle as well as the model line.
Regards,
Stan Falenski
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Thread Starter
Heel & Toe
Joined: Jun 2005
Posts: 15
Likes: 0
From: St. Boni MN
Originally Posted by Tom73
That HN suffix was used on 4 engines:
1965 327/375hp manual trans in the Vette
1968 327 with Pwrglide, in the full size & Chevy II
1969 327 with tur 350 in the full size Chevy
1969 350/300hp with tur hydramatic in full size
You did not give the casting date so cannot determin the year.
The block casting number, 3914660, is for a '68 327.
So I would have to say that your engine came from the factory back in '68 in either a full size chevy or a Chevy II and was equiped with the two speed powerglide transmission.
tom...
1965 327/375hp manual trans in the Vette
1968 327 with Pwrglide, in the full size & Chevy II
1969 327 with tur 350 in the full size Chevy
1969 350/300hp with tur hydramatic in full size
You did not give the casting date so cannot determin the year.
The block casting number, 3914660, is for a '68 327.
So I would have to say that your engine came from the factory back in '68 in either a full size chevy or a Chevy II and was equiped with the two speed powerglide transmission.
tom...
Looking for what the 18J302353 number means. Also the 823961214.
Race Director
Joined: Apr 1999
Posts: 15,127
Likes: 476
From: NM
The Vette engines only had two sets of numbers on the stamp pad. At the engine plant they would stamp the build date on the stamp pad. This would be the TO625HN (T=Tonawanda; 0625=June 25; HN=usage code). Then at the Vette assembly plant (St Louis in this case) they would stamp the VIN deritive on the pad (18J302353 on this pad). For this VIN, 194679S726516, that number should be 1Z9S726516. But I have no idea what the 823961214 is for as the Vette never had a third set of numbers (maybe a tracking number stamped by an engine rebuilder?).
By the way, all Vette small bocks back then came from the Flint plant (code F or V). Tonawanda small blocks were not used in Vettes.
One thing to keep in mind is that all these numbers only tell us what the block was orginaly used for. What it is today, who knows? The insides could be totaly changed. Could be bored and stroked, hp cam, etc. Also what about the heads?
tom...
By the way, all Vette small bocks back then came from the Flint plant (code F or V). Tonawanda small blocks were not used in Vettes.
One thing to keep in mind is that all these numbers only tell us what the block was orginaly used for. What it is today, who knows? The insides could be totaly changed. Could be bored and stroked, hp cam, etc. Also what about the heads?
tom...
Last edited by Tom73; Jun 3, 2005 at 07:17 PM.
