Wow. So much help guys. But if henry29 is correct I guess it is a 305. Although I think it would still be worth some money. I have an 83 Buick regal wagon that would hopefully scoot with that engine and trans combo. Now if say it was bored to a 327 from a 305 is that something to steer clear of? Could that be a bad thing?
How to make your own 350's are the same bore as a 327 and If I recall right a 307 crank was used thus making a 327 ,Originally they were punched out 283's that one is a fact....
If it was bored from 305 to 327, it would have kinda thin cylinder walls, and I wouldn't trust it. It also wouldn't be a "real" 327, it would have a smaller bore, longer stroke.
But henry29 is saying that the engine is 305 not 350. If this indeed is so. Would boring to 327 be hazardous if this guy did indeed do that?
I have a large journal 327 camaro motor Im using it in the A ,So they were still around in 69 .......
Today was given a free motor and told it was a 350. This thread happen to be exactly what I was looking for to identify my motor. From the information I have I am going to safely assume it is a 327. Just wanted to share how I found out my motor is in fact a 327. I looked up the rear driver side casting (3782870) and front passenger (F0822HD) that both indicated a 327. Also measured the bore and stoke to measure 4in bore and 3.25in stoke. The heads seem to be 283 power pak heads (3795896) though.
Well we were in different fields. Ive never heard of anyone calling the base model 327 250 heads "power pack heads"... just generic low HP SBC heads. Different areas could have different nick names for certain heads but I thought that Power Pack heads were named by Chevrolet and not by the street racers. So what heads were used on the 327/300 327? The 340 and 365 HP heads were the famous double hump heads each with different sized intake valves. They were the desired heads for the 327 and the Power Pack heads were looked down upon at least in my area
Otay.......I and the others in my crowd still referred to 327/250 heads as "power pack" heads because they were identical to the heads that came on power pack 283s; same valves, combustion chambers, and casting numbers. The 327/300 engines came with "fuelie/camel's hump/double hump"heads...pick your favorite nickname, but in 1.94/1.50 valve form. Same casting #s with larger 2.02/1.60 valves for the 340/350/365/375hp engines. When dealing with a 327/250, most of us made the switch to the larger heads a priority.
Actually, it wasn't. As I say with most comments like this, let's see some proof to back it up. 283 in '67, 307 in '68.
Lol. That's the internet for ya. Very true. Also, all of those 327s are the 350 horse corvette motors. Every last one of them. The block casting number is on the back, behind the distributor. That's the first number you need. The second is the partial vin stamped onto the pad in front of passenger side head. Pull the valve covers, and read the casting numbers on the heads while you're at it. The ONLY way to check this is to drop the pan and count the bolts on the mains. My last post to this thread is of a 010 block from a 1973 corvette. (Yes, I have the corvette, and I've confirmed the motor is original to that car)- and it's a 2 bolt mains. (I've heard many times that all corvette motors are 4 bolt mains) That car has tall valve covers, and that's probably what's throwing you off. (Unless your last 305 was a V6). Trust us, they all look the same. I may be mistaken, but I don't think you can bore a 305 out to 4"- you'd end up in the water jackets pretty quickly. Also, you'd still need a 327 crank (because 305s and 350s share the same 3.48" stroke). You can, however, STROKE a 305 out to around 331 cubes, and it makes an interesting but pointless motor. 500.00 for a built 327 is a good deal. perhaps too good.
You're right. I put my math hat on after I wrote that. You would need to bore it out from 3.74 to 3.8675 to make 327. I still doubt you can bore a 305 out by .125.
Ads new meaning to pulling your leg don't it. Brings up the question, "How does the Pornnbeaner always know when someone is pulling his leg?" Easy it feels so damned good.
ok guys, im gonna go look at the car again hopefully tonite and write down the numbers on the front..i also have pics but i cant upload with my phone lol ill be on the computer tonite
Bmart! (bSmart) please listen to what they are telling you!! the front numbers are only 1/2 of a VIN!! get the numbers off of the drivers side rear, near the bellhousing bolt. pull the valve cover and get the long number between valve springs. we will use the last 3 numbers to tell what head it has on it
if you need some help finding the casting numbers just send me a personal messege and i have a book with the numbers---gump
Well that does not fit in my memory bank. I remember the double hump heads as being on the 340,360,365 and 375 HP engines. It was my recollection that the only difference between the 250 and the 300 327 was the carb. I could be wrong but that is what I remember.
Or get the other set of stamped numbers on the front, if it's a 305 there will be two series of numbers. F0123CXX 1AF123456 are examples of them. The first is the engine number, it tells you what engine plant made the engine, what month and day it was assembled, and the suffix code. The second is a partial VIN, which tells you what carline (Chevy car, pontiac, truck, etc), the model year of the car, the car assembly plant, and the serial number.
Tommy A lot of it depends on where you were and who you were talking to. Where I lived when I was comming up the generic 327 heads were called Power pac heads. They got the same name at the GM dealer or in the hot dawg stand parking lot. Hell someone in England might call them Bugger Heads. That doesn't make you wrong any more than it makes me wrong. It just means that we grew up in different parts of the country. Look at it this way, I call a Duntov 30/30 cam a Duntov 30/30 cam, I see someone else calling it a 30 across and another fella giving it a part number. All of us are talking about the same cam and all of us came up in different circumstances. I didn't figure that it was worth argueing about I figured out what you were talking about and you no doubt figured out what I was talking about.
I have completely lost interest in this thread. It'll wind up being a 305, and he's putting it into a Jeep. Be still, my heart.....
But maybe it is a Jeep Gas Altered or Funny car. It really just became a pissing match about who knows the most about SBC heads.
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