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Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

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Old 06-13-2012, 06:55 PM   #1
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Default 1986 complete truck 454 into 1970 chevelle

Hey everyone, I have a complete 454 from oil pan to carb to a turbo 400 out of a 1986 suburban. My plan is to install the motor and trans temporally till I have enough to go the route i have dreamed about. My question is will the complete 454 with accessories and brackets out of the truck work in my chevelle? Will the oil pan also work?
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Old 06-14-2012, 06:59 AM   #2
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Not sure about the oil pan, but everything else should work. The Chevelle has a ton of room under the hood.
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Old 06-19-2012, 08:35 PM   #3
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Score a car oil pan and pick-up tube/oil pump. She will drop right in with the Chevelle motor mounts. Little close on the power brake booster and AC box if you use tall valve covers. You will need to have the drive shaft cut, I would cut the one out of the Suburban if it is a one piece (no carrier bearing). Chevelle transmission cross member and frame are drilled for the TH400.
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Old 07-04-2012, 11:54 PM   #4
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just got a 68 chevelle and i think the 454 came out of a truck thats in it now...but its been turned into a 468 and has about 700hp
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Old 07-08-2012, 02:03 PM   #5
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Quote:
Originally Posted by kingd_202
Hey everyone, I have a complete 454 from oil pan to carb to a turbo 400 out of a 1986 suburban. My plan is to install the motor and trans temporally till I have enough to go the route i have dreamed about. My question is will the complete 454 with accessories and brackets out of the truck work in my chevelle? Will the oil pan also work?
my suggestion is build up the compression before you drop the motor in. these motors only made about 230 hp and the crank and have about 8:1 compression


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Old 07-08-2012, 05:18 PM   #6
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Easiest way for a compression bump is to swap heads, horsepower will come from a cam, the truck 454 is designed to be torque happy at or below 4500 RPM. Vortec 7400 heads came out in the 90's to pump up the low compression 454 motors for the 454 SS trucks. They are a throw back to 65-66 396 98cc closed chambered heads witth full size oval ports. Another route is to have your heads angle milled to drop the chambers to 100-110cc. Don't worry, new 450 HP 454 crate motors only have 8.75-1 compression.


Some light, budget BBC reading:
http://www.superchevy.com/technical/...d/viewall.html

I would use big oval ports with big valves over the heads in this article, personally....

Last edited by Bar50; 07-08-2012 at 05:50 PM.. Reason: Added link
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Old 07-08-2012, 05:18 PM
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