SBC to Inliner........Motor mounts? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TP from Cntl PA · 03-24-2006, 08:34 AM

I know it is possible to swap a 250 for a SBC without any trouble, what about going the other way? My K20 had a SBC in it(Now has a 454 with a Custom set of mounts going off the OE's)..................Could I drop one of my hot 250's in it with no trouble? I know it will fit, but I seem to recall the overall location being different V8 vs the little 6 from the factory.

I am just going to use the 250 for a time until I get a 292 built up.............Then I'll run that until I get ready to drop a 4-53 or 4-71 Detroit in it

sweet n rare67 · 03-24-2006, 01:58 PM

The v8's and the I6's do sit in a different location...the I6 engine mounts bolt into the back two holes on the frame where as the v8's engine mounts bolt in the front two holes...The swap back shouldnt be a problem depending on what tranny crossmembers you have. I am not sure if this all apply's the same on a 4x4 but I believe that it would.... If you decide to do this and need the I6 Engine towers, just Let me know.
-Jake

TP from Cntl PA · 03-24-2006, 03:46 PM

Quote:

Originally Posted by sweet n rare67

If you decide to do this and need the I6 Engine towers, just Let me know.
-Jake

All our trucks(Well, my C-20 did too until I inlined it with a "Brand X" engine

) have inliners, parts trucks included............Other than this one I just bought, so I have everything I need..............Just wanted to know about location because I don't have one handy to compare.

Thanks

crazy longhorn · 03-24-2006, 06:15 PM

Your 4 wd , will accept the 250 inline on the stock small block eng stands the if they are still in the truck. The 2wd trucks, did mount the SB 3 1/2 " foward of the Inline spot, & roughly 2 1/2" foward from the factory BB spot. Best of luck on the swap.....

L

72armyswbtruck · 03-24-2006, 07:16 PM

All this motor swapping is making me

TP from Cntl PA · 03-24-2006, 07:23 PM

Quote:

Originally Posted by 72armyswbtruck

All this motor swapping is making me

Don't blame me

I had to have a Cummins in one.............Now I got one, and I want a Diesel in everyone I have because of it

But for the time being, a trusty dependable inliner will work

03-24-2006, 08:34 AM	#1
TP from Cntl PA Registered User Join Date: Apr 2003 Location: Central PA....In the Berg of Nisbet Posts: 790	SBC to Inliner........Motor mounts? I know it is possible to swap a 250 for a SBC without any trouble, what about going the other way? My K20 had a SBC in it(Now has a 454 with a Custom set of mounts going off the OE's)..................Could I drop one of my hot 250's in it with no trouble? I know it will fit, but I seem to recall the overall location being different V8 vs the little 6 from the factory. I am just going to use the 250 for a time until I get a 292 built up.............Then I'll run that until I get ready to drop a 4-53 or 4-71 Detroit in it __________________ '72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!!

03-24-2006, 01:58 PM	#2
sweet n rare67 Young truck fanatic Join Date: Jun 2003 Location: The wonderful Mat-Su Valley....Palmer, Ak Posts: 253	Re: SBC to Inliner........Motor mounts? The v8's and the I6's do sit in a different location...the I6 engine mounts bolt into the back two holes on the frame where as the v8's engine mounts bolt in the front two holes...The swap back shouldnt be a problem depending on what tranny crossmembers you have. I am not sure if this all apply's the same on a 4x4 but I believe that it would.... If you decide to do this and need the I6 Engine towers, just Let me know. -Jake __________________ '67 Chevy Longstep 2wd 350 w/4spd manual Muncie M21. My first project. Proud to be Valley Trash

03-24-2006, 06:15 PM	#4
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Re: SBC to Inliner........Motor mounts? Your 4 wd , will accept the 250 inline on the stock small block eng stands the if they are still in the truck. The 2wd trucks, did mount the SB 3 1/2 " foward of the Inline spot, & roughly 2 1/2" foward from the factory BB spot. Best of luck on the swap..... L __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

03-24-2006, 07:16 PM	#5
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: SBC to Inliner........Motor mounts? All this motor swapping is making me __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

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