Does anyone know where to find the plastic engine blocks used for mock up? I need a Hemi style engine so i can see what i will need to fabricate to fit my 572 .

found something at summit. Are they any other companies making these?

We got ours from Summit in 2018. It worked well. Served its purpose. Now it's in the way 🤣

I just use an old KB aluminum Hemi block I have with no sleeves. Weighs almost nothing. I lift in and out of the engine bays all the time by hand.

In my experience, the plastic replicas with threaded inserts are too flimsy to be used as a fixture for building parts and mounts.

i dont need to mount anything to the block, just need it for mastercylinder clearance and pass inner fender clearance.

Mike Roth at MR2 racecars sells a offset m/c adapter and the pedal mod piece that cleared my KB valve covered Hemi in my 68 Barracuda. Lamb has one but won't sell it unless you buy their brakes to go with it! Old DC piece wasn't close with the cast covers.

thank you for that heads up. what mods did you do the the inner fender to get the cover to clear?

Why can’t you just lay the Hemi heads on a 440.

Wow, I never knew
http://mockupmotors.com

For these prices I'd carve one out of pine
https://www.speedwaymotors.com/shop/mock-up-engine-blocks~14-18-542-18045

I believe this is the brand summit has.

If she comes with it, I'M IN!

[quote=mopar dave] thank you for that heads up. what mods did you do the the innIer fender to get the cover to clear? PM me.

And they don't list a 400 cu" block but they do list a 318

I have one I’d let you borrow but I’m in NY.
Hopefully someone close by chimes in.
I also remember reading the sizing was off, a little narrow

makes one want to get a junk block and transmission case, then hack out most of the internal structure to lighten it up some.

??? FOR THOSE PRICES>????
Sorry but im a cheap M fer.....i would ask around for a blown up engine before i paid 400+ for a mock up block

those foam blocks, plastic or whatever there made of are about 600+. if i buy one, i sell it after im done with it.

That's what I did. Used a 440 block w/ hemi heads bolted to it...set it in the car on the factory wedge motor mounts so I could fab the mounts for the motorplate and make sure the headers fit.
Unless you're using some sort of hemi conversion motor mount, you don't need a hemi block.

Make up a block out of cardboard, should get u close enough.