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The car went through a few desert sand storms, thus the dirt and
mud.
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This looks like the Delteq Northstar set up but it's not. It's
run by a MEFI-4 with crank tone wheel.
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Interesting way to make sure the water temp sender has a ground.
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Electromotive used to make these reluctor tone wheels.
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T56 tranny. BBHP #55
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Nabil Guffey helped me remove the tranny.
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This will go to "The Gear Box" in Mechanicsville Maryland
for refurbishment.
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Brodix LT1 heads. HA!!!
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The motor is very clean inside.
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Very nice bottom.
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Billet center main caps, Eagle 3.75" crank.
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Manley rods and pistons.
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LT4 timing set, (the small chain).
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Main bearings not so good looking.
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Will take the block to the machine shop for a
cylinder hone. The heads will get a check up too. |
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Block back from machine shop with a touch up hone. Ring
scratches left as is. Should not be a problem with oil seal.
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The scratches are at the top of #4, 6, and 8 bores.
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Cleaned up and ready to check main bearing clearance.
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The crankshaft was reground and polished and also magnafluxed.
The rods and mains are now .010" under.
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Cylinder #8 has scratches midway down the bore that should not
cause a problem.
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And cylinder #6
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With .010" under bearings in place and the crank main
journals mic'ed...it's time to measure bearing clearance with a
bore-gauge.
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.030", .025", .018", .020", .023" (5 to
1)
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Installing camshaft bearings
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Camshaft from Elliot's Portworks
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Current timing set is LT4 regular. Here is compared to LT4
extreme.
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Eagle 3.75" stroke crankshaft
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Thrust worked out to be .006"
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Photo of oil galley plug for my records
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Along with the crankshaft we are re-using the rods and the
Manley pistons. Just gotta clean them up and order new piston
rings.
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Now measuring rod bearing clearance. Here the crank rod
journal is 2.0895"
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.010" under Mahle rod bearings
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Torque the rod bolts to .004" stretch
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Most rods measured .0022" clearance.
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Decided to go with new pistons. These are Mahle flat top.
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All rods/pistons assembled and now
ready for installation.
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Now time to file fit the piston rings.
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Top ring at .021 to .022" gap
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2nd ring at the same, (.021-.022")
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Piston to cylinder wall clearance, (.003)
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Pistons in and they are .015" in the hole.
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Verified rod bolt stretch at .004" with my torque wrench at
70ft-lb
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Cam degree check. LE spec camshaft.
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Intake centerline 107
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Nice timing set.
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Cleaned up stock 96impalaSS timing cover.
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GM opti delete plug.
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Crower hydraulic lifters.
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Lifters installed.
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Cleaning of oil pan.
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