Supercharged big block build

[TWO LANE BLACK TOP]

For anyone who might be interested...Started a new engine build today...I will try to document it as much as I can although I am lazy and taking photos isn't my top priority, but I will try my best to post as many that are relevant as I can throughout the process...

The engine is 454 Chevy that was originally put together by some backyard amateur and only has supposedly 5000 miles on it...

During the teardown I discovered the engine had excessive end play in the bottom end and the rod and main bearings were damaged by not having the proper clearances and grit that was left in the engine during the previous build..So I will be turning the forged crankshaft to .010 under and using the appropriate rod and main bearings..

The bores surprisingly look good and still have a nice crosshatch pattern to them and they are straight ..No taper or ridge in the top and are nice and round and will not require any machining and only a good cleaning...

The forged rods and pistons are in really good shape and I will be reusing them after a good cleaning  will be using new rings so I can set the end gaps to coincide with the blower that will be installed..

The cylinder heads came separate in another box and were already completely disassembled..So I will work my magic on the ports and then they will be completely rebuilt with all  new parts..

Will update with photos as applicable....

Stay tuned..

 

[65gtotrips]

Wow, they’re really ‘scored’...

[Frosty]

So Two Lane - what is the goal of this motor? Street cruiser, street/strip, full on drag drag, pure machismo show car? What do you plan to put it in? How much horsepower and torque are you shooting for at the flywheel when all is said and done?

Edited March 5, 2020 by Frosty

[TWO LANE BLACK TOP]

The engine belongs to one of the guys I work for...Has been sitting in the back of the shop for a few years...Since work has been kind of slow lately... He decided now would be a good time for me to go thru it and undo and make right what the previous amateur (borderline incompetent) rebuilder had done before...

Anyway the goal is around 670 or more very streetable horsepower at the flywheel...which is realistically achievable with the cam/cylinder head, supercharger combination that I'm going use..Will go into the specs of how I will get those numbers in detail when I have a little more time here in the next couple of days...As far as the vehicle it is going in..I'm not really sure...Since the person that owns the engine doesn't really know himself yet...All he knows is that he wants a blown big block engine (so he can play show and tell with his buddies)...But I'm confident that he will come up with something cool to put it in...

Lots more to come..Stay tuned

TLBT

Edited March 6, 2020 by TWO LANE BLACK TOP

[Frosty]

Fair enough. So pure machismo street car it is. 

I can't wait to watch your progress on this thread bud.....even if it's a Cheavie man!

[TWO LANE BLACK TOP]

Unfortunately Due to work priorities and the current state of affairs of everything that is happening over the last week or so...The engine build has been delayed for awhile....☹☹

Sorry for any inconvenience...Hopefully things will change and I can resume my Quest for horsepower and torque in a couple of weeks... Even though it is "Cheavie"...

TLBT..

Edited March 13, 2020 by TWO LANE BLACK TOP

[Frosty]

No worries bud, we can wait. The world is going collectively mad at the moment. We understand.

[Ringo64]

1 minute ago, Frosty said:

The world is going collectively mad at the moment.

Understatement of the year but yes, don't worry. Look forward to any details if and when they become avail  

[TWO LANE BLACK TOP]

Now that things have calmed down some...I Have been given the green light to proceed with the build..

Upon further inspection the cylinder heads that the owner wanted to use are pretty much garbage...The combustion chambers are horribly pitted and can not be cleaned up enough to use in a blower motor without fear of detonation....As you can see the area between the valves (1st pic )...So I came up with another engine (454)..that is donating the heads and maybe the bottom end too...Over the next week or so..I will install hardened valve seats (the heads are 1971 LS-5 non EGR casting # 672292.... 113 cc combustion chambers)..New valve guides and a 3 angle valve job and stainless steel valves..Will provide more details and photos detailing the process as I move along....

The owner has also come up the vehicle the engine will be installed in.....The plan is to leave the truck cosmetically the same on the outside and camouflage it as much as possible on the inside...Although a supercharger might be kind of hard to hide..LOL..

Stay tuned..

Edited May 24, 2020 by TWO LANE BLACK TOP

[Ringo64]

Well, that would certainly look like a sleeper!! 

[JUSTA6]

Not Orange enough to be a Farmtruck.