6 cylinder engine swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

aggieguy713 · 03-06-2010, 05:30 PM

Thinking about buying a 51 chevrolet truck, the truck has a 235. I have a mid 70's model 250 inline 6, how difficult would it be to convert from the 235 to the 250?? (any bell housing issues, transmission, etc)

Wrenchbender Ret · 03-06-2010, 07:37 PM

It's a pretty big job considering they are 2 different animals, but it is done frequently. You will need a cross member under the bell housing from a 54. You need a bell housing from a 55-67 V-8 or a 63-67. 68 to 72 will work if they used a 6 cyl. You will need to fab clutch linkage, exhaust, & electrical. You will need an engine mount kit.

socaljess · 03-06-2010, 10:25 PM

im running a nice 250 with a turbo 350 combo

aggieguy713 · 03-06-2010, 11:27 PM

Another question, does anyone know of a bolt on front end clip for a 51 or a 58 pickup??

aggieguy713 · 03-07-2010, 11:09 PM

ttt

steve53 · 03-08-2010, 01:28 PM

im gettin ready to put a 250 in as well, i had to track down a bell housing to fit since i am keeping the 3 speed.

steve53 · 03-08-2010, 01:31 PM

carburetor linkage, column shift linkage, exhaust, wiring, clutch plate size, transmission crossmember, engine mounts, all have to me modified or fabricated.

03-06-2010, 05:30 PM	#1
aggieguy713 Registered User Join Date: Sep 2009 Location: ringgold, ga Posts: 164	6 cylinder engine swap Thinking about buying a 51 chevrolet truck, the truck has a 235. I have a mid 70's model 250 inline 6, how difficult would it be to convert from the 235 to the 250?? (any bell housing issues, transmission, etc) __________________ 70 Chevy C10, LT1, T5, "Blue Beast"

03-06-2010, 07:37 PM	#2
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,229	Re: 6 cylinder engine swap It's a pretty big job considering they are 2 different animals, but it is done frequently. You will need a cross member under the bell housing from a 54. You need a bell housing from a 55-67 V-8 or a 63-67. 68 to 72 will work if they used a 6 cyl. You will need to fab clutch linkage, exhaust, & electrical. You will need an engine mount kit.

03-06-2010, 10:25 PM	#3
socaljess Registered User Join Date: May 2009 Location: CORONA CALIFORNIA Posts: 120	Re: 6 cylinder engine swap im running a nice 250 with a turbo 350 combo

03-06-2010, 11:27 PM	#4
aggieguy713 Registered User Join Date: Sep 2009 Location: ringgold, ga Posts: 164	Re: 6 cylinder engine swap Another question, does anyone know of a bolt on front end clip for a 51 or a 58 pickup?? __________________ 70 Chevy C10, LT1, T5, "Blue Beast"

03-07-2010, 11:09 PM	#5
aggieguy713 Registered User Join Date: Sep 2009 Location: ringgold, ga Posts: 164	Re: 6 cylinder engine swap ttt __________________ 70 Chevy C10, LT1, T5, "Blue Beast"

03-08-2010, 01:28 PM	#6
steve53 Registered User Join Date: May 2009 Location: Norman, OK Posts: 204	Re: 6 cylinder engine swap im gettin ready to put a 250 in as well, i had to track down a bell housing to fit since i am keeping the 3 speed. __________________ 53 Chevy 3100 1/2 ton 1st Armored Division, OIF Veteran

03-08-2010, 01:31 PM	#7
steve53 Registered User Join Date: May 2009 Location: Norman, OK Posts: 204	Re: 6 cylinder engine swap carburetor linkage, column shift linkage, exhaust, wiring, clutch plate size, transmission crossmember, engine mounts, all have to me modified or fabricated. __________________ 53 Chevy 3100 1/2 ton 1st Armored Division, OIF Veteran



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