505 Tall Deck BBC Build

C

cubicdollars

Member
HeyGrumpyVette

I ran accross ypur post on another website over a year ago after I picked up a 1978 427 tall deck truck block and I based my build off of it.

1978 Tall Deck 427 truck block Casting # 364776

Callies Compstar H beam rods Part Number CSB6800 ES3BP42BDS, Length 6.800 (0.665 over stock)

Callies Dragonslayer Part Number BBP42B-DS, 4.250 Stroke ( 0.250 over stock)

SRP Flat Top's with single Valve relief Part Number 142982, 4.350 Bore, 1.270 compression height (0.100 over stock )

World Products Grumpy Jenkins series cast Rect port heads, 320cc runners, 118cc combustion chamber, 2.30 stainless intake valves, 1.90 Stainless Exhaust valves.

Comp Cams pro Magnum roller rockers.

The camshaft will be a solid roller custom grind from Camshaft Inovations.

The Intake will be Dart high rise with a CSU Blow though 850 Carb.

The supercharger will be an ATI Centrifigual F2 cog drive as well as an intercooler.

I am hoping to make around 950 HP on pump gas with this combo

I am in the process of marking for the clearencing of the rod bolts, they hit on the lower inboard and outboard cylinder walls.

Here are some photo's , enjoy....

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I worked the clearencing last weekend I feel really good about the way it turned out. My heads are in the Maching shop getting some port work done as well.

here are some picts enjoy..

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I think you're gonna have to add a set of 18 wheeler tandem axles in that truck to get any traction! :shock: :lol:
Tuck\o/
 
Grumpy

I neep your approvel :D

I am about to order my piston ring's and this is what I am planning on getting.

JE, Pro Seal Plasma Moly Piston Rings, 4.355" Bore, File-Fit, Std Tension
Item Number : F4350
Unit Price: $178.17

Based off my combination I believe these will be what I need.

Thanks
Dan
 
Hey Grumpy

I finally got back to finish my block and ordering the rest of my part's and I got down to ordering head gaskets but I started asking my machinist about them and he is having sencond thought's about me running Comitic head gaskets with head studs I am running 15 to 20 lbs of boost. He was recomending that I bring the block and head back and have them machined for O rings. My only problem is that it is still a wet block and I plan on keeping it that way.

What say you?


Thanks
Dan
 
Ive been running SCE copper head gaskets on nearly every NITROUS and supercharged engine combo I build for years (WITHOUT THE O-RINGS) (even thou the instructions suggest them) with ZERO PROBLEMS, they are available in .021-.031-.041-.051-.061-.080 for several engines

http://www.jegs.com/p/SCE+Gaskets/757870/10002/-1

http://www.scegaskets.com/

call thier tech guys who are generally helpful for info, I generally use the .021-.031 thickness and after a good cleaning you can reuse them a couple times
read

viewtopic.php?f=50&t=827&p=1231&hilit=copper#p1231
 
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