quick question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

eat1sleep8blink2 · 11-05-2009, 02:22 AM

i cant find this anywhere but i have the origianal 327 in my 1968 suburban and i dont know if it is a 2-bolt main or 4-bolt main. any one know the answer off the top of their head thanks.

1956cameo · 11-05-2009, 06:04 AM

Do you have the casting number off of the back of the block? If you do we could run that to see what it is. Honestly I don't know of any 327 4 bolt main blocks, but that doesn't mean they didn't exist. Worst comes to worst you could just drop the oil pan and have a look see.

eat1sleep8blink2 · 11-05-2009, 07:56 PM

ya i can drop the oil pan i havnt thought of running the numbers but i was hoping a 4 bolt main so i could build it up and have a a #s matching burb still

vectorit · 11-05-2009, 10:08 PM

I am not 100 percent, but I don't think the 327 came with a 4 bolt main block for production vehicles. If you see one, I'd bet the block started out with a 350 crank.

BTW.
My 68 K20 burb with it's original large journal 327 is a 2 bolt.

moonshinner · 11-06-2009, 09:42 PM

68 69 were large journal they will fit 350 blocks 67 back were small journal but they were all 2 bolt

capev86 · 11-07-2009, 12:27 PM

you could always keep the original block and externals and stroke it....thats how i'd go with the 307 in my 72 burb if i didn't already have a low mile bad boy 406sbc for it. i am sorry, but a high end screamer like a 327 doesn't belong in a truck.......better suited to a light drag racer.

eat1sleep8blink2 · 11-08-2009, 12:42 AM

exactly what i think thats why later down the road now ill put a 454 in it but keep this motor incase the next owner wahts a #s matching car

olblue60@aol.com · 11-09-2009, 08:55 AM

Hi
I saw your post, and Just wanted to say that 2 bolt mains dont get much credit. You would have to put an awful lot of horse power and drag race the heck out of that engine to have any problem with those 2 bolt caps failing. You have a nice little motor there. Good luck!

John

eat1sleep8blink2 · 11-11-2009, 10:51 PM

ya i have thought about boring this motor out and rebuilding it. but then i thought why not just go big block and have a 4 bolt main for extra safty of the motor for not much more.

olblue60@aol.com · 11-13-2009, 12:47 PM

I have a big block. Are you ready for 9 miles to the gallon at the ever rising gas prices?

eat1sleep8blink2 · 11-15-2009, 06:20 AM

ya im only getting 10 with my small bock and ill switch to overdrive when i swap to a bb

11-05-2009, 02:22 AM	#1
eat1sleep8blink2 Registered User Join Date: Jul 2009 Location: puyallup wa Posts: 33	quick question i cant find this anywhere but i have the origianal 327 in my 1968 suburban and i dont know if it is a 2-bolt main or 4-bolt main. any one know the answer off the top of their head thanks. __________________ I dont have a girlfriend, I have a dog. mark from blink-182

11-05-2009, 06:04 AM	#2
1956cameo Registered User Join Date: Apr 2008 Location: Angleton, TX Posts: 2,219	Re: quick question Do you have the casting number off of the back of the block? If you do we could run that to see what it is. Honestly I don't know of any 327 4 bolt main blocks, but that doesn't mean they didn't exist. Worst comes to worst you could just drop the oil pan and have a look see. __________________ I don't always drive trucks; but when I do I prefer Chevy's. Stay driving my friends. '72 blazer 2wd build 67-72 Factory Big Block Registry

11-05-2009, 07:56 PM	#3
eat1sleep8blink2 Registered User Join Date: Jul 2009 Location: puyallup wa Posts: 33	Re: quick question ya i can drop the oil pan i havnt thought of running the numbers but i was hoping a 4 bolt main so i could build it up and have a a #s matching burb still __________________ I dont have a girlfriend, I have a dog. mark from blink-182

11-05-2009, 10:08 PM	#4
vectorit What? Join Date: Jun 2007 Location: Southern California Posts: 7,617	Re: quick question I am not 100 percent, but I don't think the 327 came with a 4 bolt main block for production vehicles. If you see one, I'd bet the block started out with a 350 crank. BTW. My 68 K20 burb with it's original large journal 327 is a 2 bolt. __________________ Chris 1968 K20 Suburban 1972 K10 LWB PU

11-06-2009, 09:42 PM	#5
moonshinner Registered User Join Date: Mar 2009 Location: pensacola florida Posts: 21	Re: quick question 68 69 were large journal they will fit 350 blocks 67 back were small journal but they were all 2 bolt

11-07-2009, 12:27 PM	#6
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: quick question you could always keep the original block and externals and stroke it....thats how i'd go with the 307 in my 72 burb if i didn't already have a low mile bad boy 406sbc for it. i am sorry, but a high end screamer like a 327 doesn't belong in a truck.......better suited to a light drag racer.

11-08-2009, 12:42 AM	#7
eat1sleep8blink2 Registered User Join Date: Jul 2009 Location: puyallup wa Posts: 33	Re: quick question exactly what i think thats why later down the road now ill put a 454 in it but keep this motor incase the next owner wahts a #s matching car __________________ I dont have a girlfriend, I have a dog. mark from blink-182

11-09-2009, 08:55 AM	#8
olblue60@aol.com member Join Date: Dec 2003 Location: Silver Spring Md.20901 Posts: 2,031	Re: quick question Hi I saw your post, and Just wanted to say that 2 bolt mains dont get much credit. You would have to put an awful lot of horse power and drag race the heck out of that engine to have any problem with those 2 bolt caps failing. You have a nice little motor there. Good luck! John __________________ 1967 C/K10 Chevy Panel 1968 C/K20 Chevy Pickup 1968 C/K10 Chevy Suburban 1941 Chevy Sedan Delivery 1960 Chevy Sedan Delivery 1972 Camaro SS 396 #s matching 1971 Harley FX Superglide

11-11-2009, 10:51 PM	#9
eat1sleep8blink2 Registered User Join Date: Jul 2009 Location: puyallup wa Posts: 33	Re: quick question ya i have thought about boring this motor out and rebuilding it. but then i thought why not just go big block and have a 4 bolt main for extra safty of the motor for not much more. __________________ I dont have a girlfriend, I have a dog. mark from blink-182

11-13-2009, 12:47 PM	#10
olblue60@aol.com member Join Date: Dec 2003 Location: Silver Spring Md.20901 Posts: 2,031	Re: quick question I have a big block. Are you ready for 9 miles to the gallon at the ever rising gas prices? __________________ 1967 C/K10 Chevy Panel 1968 C/K20 Chevy Pickup 1968 C/K10 Chevy Suburban 1941 Chevy Sedan Delivery 1960 Chevy Sedan Delivery 1972 Camaro SS 396 #s matching 1971 Harley FX Superglide

11-15-2009, 06:20 AM	#11
eat1sleep8blink2 Registered User Join Date: Jul 2009 Location: puyallup wa Posts: 33	Re: quick question ya im only getting 10 with my small bock and ill switch to overdrive when i swap to a bb __________________ I dont have a girlfriend, I have a dog. mark from blink-182



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.