Quick 454 engine fit question - Team Camaro Tech
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post #1 of 17 (permalink) Old Sep 2nd, 08, 03:30 PM Thread Starter
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Brian
 
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Quick 454 engine fit question

Would a 454 out of a 1981 3/4 ton truck fit in a 69 without any problems? Found one for my car and want to confirm the fit.
Thanks!

1999 Lingenfelter H.O.S.S.
1969 Rally Grenn SS Camaro project (sold)

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post #2 of 17 (permalink) Old Sep 2nd, 08, 03:49 PM
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Re: Quick 454 engine fit question

Yes it will fit.You will need bigblock frame mounts and crossmember though.

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post #3 of 17 (permalink) Old Sep 2nd, 08, 05:18 PM
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Re: Quick 454 engine fit question

Here is a nice writeup from Classic Industries on what you need for small block to big block swap:
http://www.classicindustries.com/review/tips/tip016.htm

One thing to watch out for is tall deck truck blocks, those you could have trouble fitting under your hood.

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post #4 of 17 (permalink) Old Sep 3rd, 08, 07:52 AM Thread Starter
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Re: Quick 454 engine fit question

Cool, thanks for the info guys. Ed, My car already was a big block car to start with but how can you tell a 'tall deck' engine? Sorry for the dumb question as I am somewhat new to the big block side of chevrolet engines.

1999 Lingenfelter H.O.S.S.
1969 Rally Grenn SS Camaro project (sold)

RIP John Lingenfelter
(Oct. 6, 1945 - Dec. 25, 2003)
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post #5 of 17 (permalink) Old Sep 3rd, 08, 10:08 AM
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Re: Quick 454 engine fit question

You had better get a car oil pan. A truck one will fit but it rubs the tie-rod that is right behind the front cross member. My 68 is a factory big block car and I found out about the oil pans the hard way.

An 81 chevy truck, 3/4 ton or 1 ton, 454 will be the standard deck height, not the tall deck engine.
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post #6 of 17 (permalink) Old Sep 3rd, 08, 10:16 AM
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Re: Quick 454 engine fit question

Sorry to interup the present topic, but is it possible to change out the oil pan on a big block 69 with out pulling the engine? I wanted to do mine but looked under the car the other day and noticed how close it was to the crossmember (proper term?) I could only get a thin piece of cardboard between it and the oil pan. Is this normal?

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post #7 of 17 (permalink) Old Sep 3rd, 08, 10:25 AM Thread Starter
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Brian
 
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Re: Quick 454 engine fit question

Ah, good point about the oil pan Joe, hadn't thought about that one. Drew, I would imagine you could 'sneak' an oil pan out if you could lift up the motor enough to slide it out. I've done it before on my 2nd gen Firebirds without too much headache.

1999 Lingenfelter H.O.S.S.
1969 Rally Grenn SS Camaro project (sold)

RIP John Lingenfelter
(Oct. 6, 1945 - Dec. 25, 2003)

Last edited by tall guy; Sep 3rd, 08 at 10:49 AM.
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post #8 of 17 (permalink) Old Sep 3rd, 08, 10:40 AM
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Re: Quick 454 engine fit question

Thanks Brian. Now here is probably a real stupid question, but how exactly would I jack up the engine? Wouldn't I be putting stress on the drive train? I need at least 4".

Thanks

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post #9 of 17 (permalink) Old Sep 3rd, 08, 10:48 AM Thread Starter
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Brian
 
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Re: Quick 454 engine fit question

Drew,
I used to take off the hood and use a cherry picker to carefully lift up the motors for a pan swap. One could jack up the engine via the crank balancer with a jack but I would not recommend it personally.

1999 Lingenfelter H.O.S.S.
1969 Rally Grenn SS Camaro project (sold)

RIP John Lingenfelter
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post #10 of 17 (permalink) Old Sep 3rd, 08, 12:19 PM
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Re: Quick 454 engine fit question

I understand, thanks Jeff! I may save that project for later, my oil pan is okay, it just looks like it had been used for bb gun target practice at one time.

Good luck with your swapout!

Regards,

Drew

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post #11 of 17 (permalink) Old Sep 3rd, 08, 03:17 PM
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Ed
 
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Re: Quick 454 engine fit question

Quote:
Originally Posted by tall guy View Post
Cool, thanks for the info guys. Ed, My car already was a big block car to start with but how can you tell a 'tall deck' engine? Sorry for the dumb question as I am somewhat new to the big block side of chevrolet engines.
Probably the easiest is to get the casting # and post here or look up the casting number it should tell you.

You can also measure (10.2+ for tall decks and 9.8" for standard.

http://www.roadsters.com/bbc/#blocks

Ed

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post #12 of 17 (permalink) Old Sep 3rd, 08, 05:37 PM
 
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Re: Quick 454 engine fit question

A 3/4 ton P/U 454 should already have a 454 car oil pan on it b/c my '75 did!

As for needing to use a BB cross member, I just kicked my 454's M-20's tranny tail housing over an inch and used a poly tranny mount w/ three holes and used the center hole in the poly mount through the pass. side hole in my 350SS's cross member fine! One-bolt deal here!!

NOT stock, but FINE by me!

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post #13 of 17 (permalink) Old Sep 3rd, 08, 09:23 PM Thread Starter
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Brian
 
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Re: Quick 454 engine fit question

Cool, thanks for the additional info. I plan on checking out the motor this weekend, hopefully it'll all work out.

1999 Lingenfelter H.O.S.S.
1969 Rally Grenn SS Camaro project (sold)

RIP John Lingenfelter
(Oct. 6, 1945 - Dec. 25, 2003)
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post #14 of 17 (permalink) Old Sep 4th, 08, 02:56 AM
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Brian
 
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Re: Quick 454 engine fit question

Have you checked here to see if your original engine is out there: http://www.camaros.org/forum/index.php?board=13.0. If your car is an original BB car, it might be worth the $$ to at least have your original engine back. You can always stick the 454 in the car and hang onto the original for later.

Experience...... It's what you get when you didn't get what you wanted.
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post #15 of 17 (permalink) Old Sep 4th, 08, 06:16 PM
 
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Re: Quick 454 engine fit question

If I had this to do over again, I would buy stock '67, 6-banger/350SS motor rip-a-part GM rubber mounts and drill holes in them and bolt them solid and go b/c they are the shortest rubber mounts GM made so that hood clearance will be at max.

Done done it so know.

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