09-25-2017, 10:54 PM | #226 |
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Re: 1965 1/2 C10 Pickup
Why in 1965 would the factory put aftermarket roller lifters in his L79?
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09-25-2017, 11:40 PM | #227 |
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Re: 1965 1/2 C10 Pickup
they didn't... lol...simply were not avail back then...if in fact this engine has roller lifters and cam, then it will have a cam button behind the timing cover to keep the cam from walking... if indeed it has these...then it has been retrofitted at a later time.....factory rollers dont jave bars on the lifters...and dont use a cam button
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09-25-2017, 11:45 PM | #228 |
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Re: 1965 1/2 C10 Pickup
If the OP's L79 did actually have roller lifters in it from 1965, the aftermarket is the only source for a roller cam and lifters. And at that they would not be easy to come by in 1965.
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09-26-2017, 07:53 PM | #229 |
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Re: 1965 1/2 C10 Pickup
I think he had big connections. lol
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09-26-2017, 08:18 PM | #230 |
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Re: 1965 1/2 C10 Pickup
There really isn't any shame acknowledging we may have forgotten something. But after we swear up and down, and stomp our feet; It sure takes a lot of humility.
But, still no shame. 'Hey, I could have sworn' .... isn't a rare expression.
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11-07-2017, 01:43 AM | #231 |
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Re: 1965 1/2 C10 Pickup
Just got Engine back from Machine Shop. Engine Block#'s (3858174) (GM225) (F1123YD)
Head# (3782461) (B175) Friend researched and says that this engine was meant for a CHEVELLE,MONTE CARLO OR EL CAMINO but the YD at the end of the code indicates Pick Up. The Block Casting # says car only but the stamped #.... that was applied well after the Block was cast indicates that it was installed in a Pick Up. He thinks it is indeed a Hybrid Engine. Will continue to research. https://www.amazon.com/photos/share/...HnbcINHHDavtM4 |
11-07-2017, 05:09 AM | #232 |
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Re: 1965 1/2 C10 Pickup
-Corrected YD is our trucks.-
http://www.chevy-camaro.com/chevy-ca...s.asp?group=11 The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. The entire engine Code contains the assembly plant, month and day along with the engine suffix Code. Let’s review. Your pictures show a two (2) bolt main block (not HO). Suffix Code FII23YD Flint Plant, November 23rd, The YD is a: Code Year CID HP BBL Application YD 1966 327 220 4 Powerglide,A.I.R. (this is the one) YD 1968 327 240 4 Powerglide,A.I.R. (not this one as the casting number ended production in 67) http://www.chevy-camaro.com/faq/chev...-decoding.shtm Nothing special here and no indication of roller lifters even in the picture of neither the block nor the heads. (incorrect info deleted) http://www.nastyz28.com/gm-chevy-cod...-suffix-10.php The casting number indicates it was a: 1964-67 3858174 327ci 275hp 2bolt main = Low Power (275 horse- not HO) 2 bolt main block. Nothing special here. You have a nice 327 block, who put you up to the roller thing? - That by the way didn't exist when this engine was made.
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11-07-2017, 07:23 PM | #233 |
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Re: 1965 1/2 C10 Pickup
http://www.superchevy.com/how-to/eng...esign-secrets/
Paragraph starting with Valvetrain Breakthroughs says roller lifters and cams invented in the 60's... I only knew of mass produced rollers in 87 but I was 4 in 66 so who knew... |
11-07-2017, 09:33 PM | #234 | |
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Re: 1965 1/2 C10 Pickup
Quote:
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11-08-2017, 12:39 AM | #235 |
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Re: 1965 1/2 C10 Pickup
It does seem a little odd to me that the heads were cast on February 17 1965 but yet the engine was not built until November 23. But that is not to say that those heads are not original to that engine assembly. The heads having 1.94 intake and 1.50 exhaust valves, the engine would not have been a L79. I'm just not sure if those heads would have been on a 220hp engine. I am used to seeing them on 275-300 hp 327's. I was really hoping to see some sort of poof of the 'original roller lifters'.
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11-08-2017, 01:24 AM | #236 | |
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Re: 1965 1/2 C10 Pickup
Quote:
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11-08-2017, 11:37 AM | #237 |
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Re: 1965 1/2 C10 Pickup
Thats a good point concerning the heads date and valve size. I read the suffix code on the block stamp pad says that it was made in Nov 66. Am I right there or reading it wrong?
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11-08-2017, 12:09 PM | #238 |
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Re: 1965 1/2 C10 Pickup
I was told by a very knowledgeable member that the 174 casting number is 1966 ONLY . Those are interchange years I was quoting not actual block years.
I was also corrected on the YD - The '66 327 Truck prefixes are: YS, YR, YH, YC & YD. And that the block may be original to the truck but the heads aren't. Which "may" be the reason for the roller cam latter on. Reading the C-10 Parts Book on page #8 at the bottom the YD is shown in the 1966 year but not on the 1965 year. Could be incorrect or the date of the truck is incorrect? So these engines didn't have a VIN on the bloc. I'm hearing this truck is a 1966 then? Not a 1965? Makes a difference on the info being correct. Question: a. Can the OP show the original cam numbers from the original roller cam? b. Did those main studs originally come with the block?
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11-08-2017, 01:58 PM | #239 |
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Re: 1965 1/2 C10 Pickup
If it did have a roller cam it was aftermarket. Isky had roller cams avl in the late 50's and they would have been solid lifter type.
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11-08-2017, 03:03 PM | #240 |
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Re: 1965 1/2 C10 Pickup
Yes the Main studs came with the Block.
We looked at the Cam and could not find any numbers? Where should we look? Truck is 66 although i said 65 as i received it in 65. Sorry for the confusion. Rollers came from factory as i have owned since new and engine has never been opened. Fremont Drag strip was next door to factory and perhaps this was something they were building to test and it got in this truck. Crazy but i guess i will never know how it happened. |
11-08-2017, 04:15 PM | #241 |
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Re: 1965 1/2 C10 Pickup
Thank you for all the info.
The Machine shop calls it a 4 bolt due to the screws in the middle of the bolts. This could be wrong info? No Rollers shown as the originals were thrown away. I know i will be torn apart for this but a third party was doing the engine work and had no idea what he had at the time. I would give my right arm to have them. As i said before i have owned the Truck since new and the engine has never been apart so it had to come from the factory. We talked to someone who worked at the Fremont Plant during the 60's and he believes that this could have happened. He said they were building engines on the side in the factory and this could have explained this situation. Whatever it looks like i will never get to the bottom of this but i thank all for trying to help. The Truck will be kept in the family and passed down. We will enjoy having it. |
11-08-2017, 04:19 PM | #242 |
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Re: 1965 1/2 C10 Pickup
You might be confusing what is actually 'Factory'.
It may have been put in by an associate there at your dealership, or at the drag strip you mentioned was next door.
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11-08-2017, 04:46 PM | #243 |
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Re: 1965 1/2 C10 Pickup
Pathological liars are fascinating
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11-08-2017, 06:41 PM | #244 |
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Re: 1965 1/2 C10 Pickup
If a machine shop calls that a four bolt main then I can imagine what else they call it. Or maybe I can't imagine what?
Well as I said before it's a nothing special engine block made for a 66 Chevrolet truck as stated in the C-10 parts book. No roller about it. Sometimes people want something Soooo bad to have something special that no one else has, I get it.
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11-08-2017, 09:34 PM | #245 | ||
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Re: 1965 1/2 C10 Pickup
Quote:
Quote:
The rollers didn't come from the factory |
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11-08-2017, 09:42 PM | #246 |
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Re: 1965 1/2 C10 Pickup
First off is the new rebuilt engine going to have roller lifters in it?
If so does it have a cam button? If yes did the machinist install it? If no,.... well we all know how that is going to play out now don't we? The same machinists that called this a 4 bolt main engine because it had aux lugs on the studs,... is he the same guy that identified the lifters as rollers??? So many questions we will never ever, ever get an answer to. Just because you are old, don't give you the right to change the truth to your own reality. I am nearly 60 years old myself so I am just a kid to you, but I have 50 years of building Chevrolet Hot Rods and I get to call BS when I hear it. |
11-08-2017, 09:45 PM | #247 |
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Re: 1965 1/2 C10 Pickup
Unfortunately, yes that info is wrong. That is a 2 bolt main with locking nuts on the screws. A 4 bolt main would look like what I have pictured. A total of 4 Bolts per main....hence 4 bolt main.
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11-08-2017, 09:47 PM | #248 |
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Re: 1965 1/2 C10 Pickup
This is a cam button,
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11-09-2017, 12:35 AM | #249 | |||
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Re: 1965 1/2 C10 Pickup
All 327's were 2 bolt mains. No that is not '283 valve size'. The 283's had 1.74 intakes and 1.50 exhaust valves.
Quote:
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11-09-2017, 07:50 AM | #250 |
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Re: 1965 1/2 C10 Pickup
They did not put roller cams back in 1965 from the factory in chevy cars or trucks.
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