427 tall deck rebuild

[kellerbm]

Thoughts on a 427 tall deck build for 84 Chevy c10, is this motor worth rebuilding with minor modifications to get 450 + hp or is boring and putting a bigger crankshaft more ideal. Want hp but torque is a must; thoughts and opinions would be greatly apprciated.

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[74 Shortbed]

Hell yeah, build a 496+ ..

 

[Honky Kong jr]

What he said ^^^^

 

[kellerbm]

Hell yeah, build a 496+ ..

496 stroker it is then, better call the machinist and tell him to bore the motor 60 over. Thanks

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[Honky Kong jr]

Welcome by the way. Before you go boring the piss out of that block have it sonic checked. Not all big blocks are created equal. The wide pan rail of a tall deck is stroker friendly and long rods are good too meaning your gonna need to buy some. The rods in a TD are just standard rods it just has them big ass pistons hanging on them. I have one in my collection waiting its turn.

 

[74 Shortbed]

Yes, it should to be sonic tested, even though they are thick walled they do have core shift some more than others, but I've seen bad ones that were still pretty thick at .060 over.. If it's a street deal this a real good kit for the price..

https://www.summitracing.com/int/parts/sca-191605bie060/overview/

 

[kellerbm]

Welcome by the way. Before you go boring the piss out of that block have it sonic checked. Not all big blocks are created equal. The wide pan rail of a tall deck is stroker friendly and long rods are good too. I have one in my collection waiting its turn.

Motor has been fluxed, cleaned, honed, new cam bearings and frost plugs. Was going to pick it up this weekend. I will post my progress and ask more questions as I continue to build.

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[kellerbm]

Yes, it should to be sonic tested, even though they are thick walled they do have core shift some more than others, but I've seen bad ones that were still pretty thick at .060 over.. If it's a street deal this a real good kit for the price..

https://www.summitracing.com/int/parts/sca-191605bie060/overview/

Any thoughts on a camshaft? Was looking at a thumpr retrofit hydraulic roller, not sure if that would be a suitable cam for that build. Looking for torque not so much hp.

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[Honky Kong jr]

Cam is dependent on compression. What heads are you going to use? The Thumper is for noise no real benefit other then sounding good. Any good engine builder will say the same.

 

[kellerbm]

Cam is dependent on compression. What heads are you going to use?

Up in the air about that, was looking at edelbrock e street or world production heads

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[74 Shortbed]

If it's going back to get bored better have him pop the cam bearings, because the block will have to be thoroughly cleaned afterwards before assembly, it probably needs detailing first too..

 

[Honky Kong jr]

Up in the air about that, was looking at edelbrock e street or world production heads

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I more meant combustion chamber size. And I edited that post about the cam. lol I added stuff. The retro roller is a good idea the thumper not so much.

 

[kellerbm]

If it's going back to get bored better have him pop the cam bearings, because the block will have to be thoroughly cleaned afterwards before assembly, it probably needs detailing first too..

Motor is still at the shop was going to pick it up this weekend, i will give the guy a call tomorrow to tell him the news[emoji1]

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[74 Shortbed]

The Thumper is for noise no real benefit other then sounding good. Any good engine builder will say the same.

Them POS Thumpers are for cruising through the drive in lookin macho, then pull out on the road and get blown away by Grammas grocery getter..

 

[Honky Kong jr]

Them POS Thumpers are for cruising through the drive in lookin macho, then pull out on the road and get blown away by Grammas grocery getter..

That was my point and you can get the same effect by having a vacuum leak lol