How can i determine year of L67 block
#1
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How can i determine year of L67 block
the engine in my park ave is from a 93 olds ninety-eight.( or so i was told.)
but after reading how the hb and the cps pulses are different between the 92 and 93s, im a little confused. heres why. when i originally got the engine in i had tried to use a 93 pcm, and prom, it didnt start. i also had a 92 ssei prom, so i tried it, and it started up first try. so that would lead me to believe that the engine is a 92. considering i didn't change the hb. is there any numbers on the block i can use to trace the exact year?
i have also heard mention of a slight difference in the heads between the 92 and 93. i think it was rocker arm bolts, or studs, not 100% sure though. is there something i can measure to help ID?
but after reading how the hb and the cps pulses are different between the 92 and 93s, im a little confused. heres why. when i originally got the engine in i had tried to use a 93 pcm, and prom, it didnt start. i also had a 92 ssei prom, so i tried it, and it started up first try. so that would lead me to believe that the engine is a 92. considering i didn't change the hb. is there any numbers on the block i can use to trace the exact year?
i have also heard mention of a slight difference in the heads between the 92 and 93. i think it was rocker arm bolts, or studs, not 100% sure though. is there something i can measure to help ID?
#2
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According to this:
http://64.233.169.104/search?q=cache...lnk&cd=2&gl=us
You should be able to determine 92 versus 93 with number of knock sensors and the block casting number
(where exactly to find the casting number, you got me hanging )
http://64.233.169.104/search?q=cache...lnk&cd=2&gl=us
You should be able to determine 92 versus 93 with number of knock sensors and the block casting number
(where exactly to find the casting number, you got me hanging )
1990-92 VIN L
The 3.8L block was updated with a one-piece rear seal in 90. The Buick Regal was the only application for this engine in 90, but the new EV-6 motor was used for all the FWD cars and vans including the Lumina APV, Pontiac Transport and Olds Silouette from 91 through 92. Look for a block with either a 25532674 or 25534243 casting number.
1993-94 VIN L OR VIN 1 SUPERCHARGED
The earlier EV-6 block was revised in 93. It had an additional pad on the driver* side for the knock sensor and another bolt hole in the left front corner, just below the deck surface, for an accessory mount. It* either a 24502134 or a 24502441 casting.
The 3.8L block was updated with a one-piece rear seal in 90. The Buick Regal was the only application for this engine in 90, but the new EV-6 motor was used for all the FWD cars and vans including the Lumina APV, Pontiac Transport and Olds Silouette from 91 through 92. Look for a block with either a 25532674 or 25534243 casting number.
1993-94 VIN L OR VIN 1 SUPERCHARGED
The earlier EV-6 block was revised in 93. It had an additional pad on the driver* side for the knock sensor and another bolt hole in the left front corner, just below the deck surface, for an accessory mount. It* either a 24502134 or a 24502441 casting.
#3
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All Series 1'* have only ONE knock sensor on the rear bank in an oil passage/gallery. Whether there'* a SPOT for another I don't know, but all of them (L27 and L67 alike) only had one installed.
I would dig mine out and tell you, but I've wrapped and sealed it, and put it away.
I would dig mine out and tell you, but I've wrapped and sealed it, and put it away.
#4
Poke around this site:
http://www.mortec.com/location.htm
I know it'* for V8s, but there might be some info for V6s. You might even want to email the admin to see if he can point you in the right direction.
http://www.mortec.com/location.htm
I know it'* for V8s, but there might be some info for V6s. You might even want to email the admin to see if he can point you in the right direction.
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the crank sensor issue has me confused even more now. on rock auto, the hb from 91-93 are the same for the L67, and 94-95 are different. now for the L27s they are the same from 91-92, and 93 to 95 are the same. but im just going to leave that out of the equation. that will just make it more complicated.
i know the oe ks is in the rear of the engine, but there is also a hole threaded in the front of the block too. thats where i had the ks when i used the regal wiring harness when the engine was in my grand prix.
now bill, in your pics, am i looking for the casting numbers that i see on the bellhousing? is that what you are trying to show me? cuz if not, i dont see any thing different between the 2 blocks .
i will check those block castings and use agrazela'* post to help narrow it down.
thanks guys.
i know the oe ks is in the rear of the engine, but there is also a hole threaded in the front of the block too. thats where i had the ks when i used the regal wiring harness when the engine was in my grand prix.
now bill, in your pics, am i looking for the casting numbers that i see on the bellhousing? is that what you are trying to show me? cuz if not, i dont see any thing different between the 2 blocks .
i will check those block castings and use agrazela'* post to help narrow it down.
thanks guys.
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Originally Posted by willwren
Wes, I'm just showing you WHERE the markings are.
but i looked and dont see the numbers im looking for. all i could see were the "3800" casting, and something that said "B233". i will have to wait till i do my sc swap to get a better view.
but when i was out there, it had occurred to me that the original LIM was the walled one. were there any known 92s here that had that?