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Engine sizes

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Engine sizes

Post by sharding on Mon Sep 03, 2018 10:45 am

Anyone have a big block in their MX? Wondering if a Ford 460 would fit.

Steve

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Re: Engine sizes

Post by Hotrod on Mon Sep 03, 2018 11:49 am

My guess is, yes it would fit, but there will most likely be some exhaust issues.  Also, there is not a lot of room with a small block for an air cleaner, so that might be an issue as well.  

The Sebring uses a motor mount system that allows for a wide range engines.  I don't know if Classic Roadsters ever offered a set of adapters for a 460, but they are fairly simple welded parts that could be built easily.  The main problem with this setup is that it takes up a lot of room in a place that doesn't have much to begin with.  This doesn't leave much room for exhaust.  That's why I chose to ditch the CR setup and build my own mounts for the LS engine I'm putting in mine.

Also, I rode in a Cobra replica that had a 460.  It was a footwell scorcher for sure. My feet felt like they were in an oven!  You will need to look hard at some type of good insulation.

Good luck.
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Re: Engine sizes

Post by sharding on Mon Sep 03, 2018 12:09 pm

Even my 302 throws more heat on my feet than I like! Once I pull the engine, I'll insulate.

Not sure on the BB route, just noticing the gobs of torque a mild 460 build makes.

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Re: Engine sizes

Post by Hotrod on Mon Sep 03, 2018 1:01 pm

Big blocks are torque monsters, but they are also very heavy. Something to think about.

That 302 you have can easily be stroked to 347 (I think. Not a Ford guy) and that could also be set up to produce a lot of torque. This route has the advantage of allowing you to keep all the externals that you have now. Really a bolt-in deal.
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Re: Engine sizes

Post by Jimboquick on Tue Sep 04, 2018 10:40 am

"Big Block"-equipped cars just never handle / brake as well as identical, "small block"-equipped cars.
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Re: Engine sizes

Post by sharding on Tue Sep 04, 2018 10:59 pm

Starting to explore the 400. Big block inches in a small block.
Steve

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Re: Engine sizes

Post by David V. on Wed Sep 05, 2018 1:45 am

hmmm... some would say the logical route would be to order a crate engine stroker 302 based on an aftermarket block (I've heard stock blocks can crack)...with say some GT40 heads...and maybe a centrifugal supercharger if budget allows. Would bolt up, save you bucket loads of fabrication (and probably money).

Though I understand wanting to do something unique. Keep in mind that Sebrings are already a touch nose-heavy.
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Re: Engine sizes

Post by Jimboquick on Wed Sep 05, 2018 12:16 pm

Another factor is your choice of transmission. A 2,400# car doesn't really need a huge amount of torque multiplication if an automatic tranny is your choice.
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