![](3948t.jpg)
The block is freshly honed and cleaned.
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![](3949t.jpg)
This block is a core from a good customer. It is bored to
4.040"
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![](3950t.jpg)
The core block had already been decked so I had the machine shop
simply clean and buff the deck.
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![](3951t.jpg)
The entire rotating assembly was sourced from SCAT. They
originally sent an SRP piston and I exchanged the SRP for the Mahle.
The piston/rings/pin/locks combo is 10 grams lighter. Now the
crankshaft is at the balance shop for a re-balance.
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![](3952t.jpg)
The affordable yet still sturdy SCAT I-beam connecting rod with
7/16" rod bolts.
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![](3953t.jpg)
Piston part number Mahle SBC125040I16
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Balance:
Rod big end 417g
Rod bearing 42.5g
Oil 4g
Rod small end 159g
Piston/pin/locks/rings 591.5g
Bob Weight = 1673.5g
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![](3996t.jpg)
Mahle 4.040" piston checked for piston-to-wall clearance,
(.0030) just on the high side of the spec.
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![](3999t.jpg)
TFS 21 degree LT1 heads (out-of-the-box)
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![](4002t.jpg)
Piston and rod assemblies.
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![](4003t.jpg)
Mahle uses a 1 gram wire lock to save weight, (every gram counts)
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![](4005t.jpg)
File fit of Mahle rings, (.020" top ring and .018" 2nd
ring)
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![](4010t.jpg)
Block painted with POR15 engine black
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![](153t.jpg)
Camshaft installed.
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![](156t.jpg)
Main bearing check. All beairng clearance from .0025"
to .0020"
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![](165t.jpg)
Crank thrust is .007"
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![](168t.jpg)
Cylinders verified clean
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![](173t.jpg)
Installed #1 piston/rod and degreed camshaft. Found to be
106 deg intake centerline. Exactly as cam card.
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![](180t.jpg)
Rod side clearance is .018 to .019" and rod bolt stretch is .004
to .005"
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![](182t.jpg)
Mr. Gasket .026" thick head gasket.
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![](183t.jpg)
Pistons are .008" in the hole
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![](186t.jpg)
TFS 21deg heads. (no porting).
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