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Muscle Car Engines

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Bridgetown, WA
Muscle Car Engines

Custom built Pontiac and muscle car engines.

16/06/2026

410 cube Cleveland build.

We have been busy putting together a super nice Cleveland engine using a factory 351 block machined to perfection from the guys at Galloway Engineering in Pinjarra.

The block has been line honed with ARP main studs, square decked and taken to the next oversize. A couple of minor oiling mods were performed and the bottom of the cylinders have been smoothed after machining.

The S**t forged 4” stroke polished crank, 6” forged rods and a custom set of forged SRP pistons & JE rings complete the balanced rotating assembly.

A Rollmaster timing chain is used to degree our custom grind hydraulic roller Comp Cam. Morel limited travel roller lifters and Yella Terra roller rocker arms keep the valve train in check. Custom pushrods have now been ordered.

Aussie 2V closed chamber heads sit up top and have been fitted with larger valves and rocker pedestals cut down for ARP screw in studs with Comp guide plates.

More pics to come as we get this one ready for install into a beautiful XYGT replica.👍😎

13/06/2026

Pontiac 350 stroker updates.

In our latest video we highlighted a couple of assembly errors found once we started looking into the cylinder heads on our latest Pontiac build.

“Buyer beware” when it comes to ordering engine kits… many think that you can just bolt these parts on and go. In reality everything must be measured & inspected during assembly.

We found an upper bearing shell for our 6.8” connecting rods was oversize and mixed in with the set of standard shells but marked as STD. Brand new out of the box. It was actually .010” over so we lost .005” clearance when assembled onto the big end.

Our customer opted for a beautiful set of DSS forged pistons with a nice thin metric ring pack but the rings supplied were 1/16 1/16 & 3/16” so we are sorting that.

Then there were the incorrect size valve stem seals forced onto the larger valve guides hiding beneath the double valve springs in the cylinder head. We also set the installed heights up to within .015” and matched spring pressures to suit.

All this adds time to the build and proves a little attention to detail goes a long way.

While we wait for parts, the Comp Cam hyd roller has been degreed and checked out perfectly. A Rollmaster billet timing chain is held in place with an ARP cam bolt torqued to 70ftlb.

As this is a 3.905” bore it is super important to check valve to cylinder wall clearance and we heavily massaged the valve reliefs in the top of the block to accomodate the larger Edelbrock cylinder heads with a 1.65:1 rocker arm ratio.

With the flat top pistons and a 72cc chamber we are right at 10.5:1 compression with our 4.25” stroke crank.

Coming along nicely now and a fantastic upgrade for the Pontiac 350 punching out to 407 cubic inches!!

12/06/2026

Pontiac cylinder head assembly mistakes.

09/06/2026

Love my job… assembling another set of Pontiacs ultra rare Ram Air IV cylinder heads from 1969!😎

03/06/2026

A fantastic gift from one of our customers!

Check out this awesome ‘62 Catalina 1/18 scale model of Arnie The Farmers 421 Super Duty “Passionate Poncho” drag car.

The detail is amazing, even down to the factory exhaust cut outs!

Currently keeping watch over the engine room, thank you so much Anthony!👍😎

20/05/2026

Pontiac 350 Stroker!

Our latest Pontiac build is coming together and we have been looking toward to this one for a while now..

We have been busy prepping the block with our minor oiling system modifications and getting ready to dummy up the bottom end.

Once back from machining we go through the block and de burr the bottoms of the cylinder walls remove excessive casting flash and smooth off a couple of sharp edges to eliminate stress risers.

Once washed and dried we oil the bores and remaining freshly machined surfaces before applying the high temp ceramic engine primer & custom deep metallic aqua paint supplied by our customer.

Once paint is dry we then install the welsh plugs and oil galley plugs including the “hidden” plug that has been drilled with a .030” hole in the center to keep the polymer distributor gear happy.

Main bearing clearances are checked and the rotating assembly is laid out and inspected ready for installation.

Our customer chose to upgrade to DSS forged pistons, Eagle forged I beams and a 4.25” stroker crankshaft punching this little 350 block out to an impressive 407cubic inches!

This engine is destined for an early 2nd gen Firebird & we will keep you updated with progress pics👍😎

07/05/2026

1954 Ford Y Block.

Congratulations to Sam from Sydney for correctly identifying our latest 1954 EBU casting Y Block engine build! One of our T shirts is on the way…

Here’s a few progress pics as we go through and start the assembly.

Once we have the block back from machining we then go through and dummy everything up. Bearing clearances are checked, bottom of the cylinder walls chamfered and excessive casting flash is removed.

We also smooth out as many oil passages as we can reach in order to improve lubrication.

Oil galley plugs are removed and a final high pressure wash with warm soapy water cleans everything out so we can apply ceramic primer.

Our customer chose to go with the original and correct shade of Ford factory red paint and looks very nice on the deep skirted block.

The custom Racetec forged pistons look like perfect little jewels and come with a modern 1.5, 1.5 & 3mm ring pack.

Rings are file to fit from Total Seal with moly top rings and napier 2nd’s. Expanders have been modified to sit loosley in the bore.

Rotating assembly has been weight matched and balanced.

Our Comp Cams custom grind mechanical camshaft is installed after the lifters are in place as you must install the lifters first due to their mushroomed shaped head.

Getting to this stage of the build has really been an international effort and is much appreciated by all those involved including Galloway Engineering, Brent Lykins Motorsports in Kentucky, Mummert Racing in California & various others from Australia & New Zealand.

Enjoy👍😎

03/05/2026

Competition time!

Which one of our followers will be the first to correctly id our latest engine block back from Dave and the legends at Galloway Engineering in Pinjarra.

Pretty rare world wide now and has been difficult to source the parts we need to get this engine up and running again.

One year only casting & the bore has been taken out 50 thou and is now at 3.550” Solid lifter from the factory.

Up for grabs is a free Muscle Car Engines T shirt in Army green to honour our Veterans. Will post Aus wide.

What year and engine family please?

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Bridgetown, WA
6255

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