This block was preserved with a thick goop to minimize rust.
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Headed to the machine shop for clean and inspect.
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Weights for the balance shop.
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Wiseco Pro piston. 1st time I've used this pistons.
Good design underneath.
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-28cc
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1st ring is .300" down which is nice for tubo-blower motors
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It's relatively light weight for a blower piston.
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Doing what I can without the crankshaft. The crank is still
at the balance shop.
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POR 15 black.
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Mahle rings file fit at .028" 1st and .026" 2nd.
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Block cleaned up and oil galley plug installed.
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Premium cam bearings installed.
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LE Camshaft via Lunati
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Rod bearing clearance check...
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Mostly all standard size Clevite H with a few .001" under
mixed in.
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Crankshaft back from the balance shop.
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Main bearing clearance check. Some mains required the 'x'
size to give more clearance. The target was .0025"
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Final clearance written in sharpee. 0 means standard size
and "x" means one over.
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Thrust was .006"
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Stock timing set provided by customer.
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A look at the 2 bores that have a slight blemish. This is #2
with a bit of rust and so it required the whole motor to go to
4.032"
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This is #7
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The remainder of the bores look good just like this one.
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Rods/pistons all installed and rod side clearance is .020"
and Callies Compstar H-beam rod bolts are torqued to 75ft-lb
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Pistons are .008" in the hole
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Cam degree check at 110 intake centerline and the cam card calls
for 108. (loose chain)
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The block deck was not milled because it was nice and square.
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7.150" previously used pushrods work well to get the rocker
tip centered on the valve tip.
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The chain is too loose. The chain makes a clunking sound
when you rotating the motor. Now going to install a Cloyes
double roller and convert from 93 opti to the vented opti.
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Here is a photo of the nearly finished long block. Now
taking a break from the build to deal with the timing set.
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Customer agreed to a vented opti-spark. I made the pin
shorter previously and so now I need to remove it and put in a longer
pin. This pin will not be persuaded. I finally broke it
off and drilled it out.
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A Cloyes double roller was installed.
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Crank sprocket at +2.....
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...gives 108 intake centerline exactly as cam card shows.
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Scorpion self aligning rockers.
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Stock windage tray
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modified and bent to clear the rods.
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Stock oil pump.
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Stock oil pan cleaned up as much as possible.
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I cut and peal back the dipstick hole in the windage tray.
Less metal shaving potential.
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Oil pan on. Notice my shop is now in the garage.
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Valve covers on and dyno manifold on as a dust cover.
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Now we wait for the delivery of the Jeg's
crank damper.
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I moved the assembly shop into the 2-car garage due to a pending
move.
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Pressure test of the oil system. I used a heavy 15W-40 oil
here so the 60psig is higher than usual.
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I use an 18v battery powered drill.
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It only took 1 minute for the oil to reach all of the lifters.
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Now at the dyno. Morgan International
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One delay was that I only had a neutral flywheel for the dyno.
I purchased a stock "external" flywheel and now I can run
any balance combo on the dyno.
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750 Holley carb
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Hot after the dyno session.
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Oil and rockers look fine.
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