Yes sir, 68.5 fastback, 4 speed.

Good hearing from you Blair, thanks for the info.

That TCI 428501 is a Mopar filter. As seen on the Summit site.
It requires an adapter to mate with the C6 valve body.

TCI website is no help.
For ALL their filter options, they show a generic photo of a GM 4L60E filter kit.

There are 3 different factory filters for the C6.

The early "flat" filter for the passenger car shallow pan.

Slightly deeper filter for the later "Truck deep pan".

Truck 4X4 filter that is basically the same depth as the "Truck deep pan",
except it has a rubber grommet and a small tube extension for the deeper yet 4X4 pan.

The 4X4 "Ford type" filter is what came with my Summit branded deep cast aluminum C6 pan.
I don't know the depth of the TCI pan you have, or if the Ford 4X4 filter would fit.

I got the new Cometic 4.170 gaskets and they clear the cylinder but still shroud the chamber when laid on the head. Would you consider using a fine die grinder on the head gasket to profile it to the cylinder head chamber shape. It only interferes at the 2-3 and 9-10 O'clock areas. The gasket does clear the whole cylinder on the block. Wondering if the gasket protruding into the valve area but clamped by the head on the cylinder would pose a hot spot potential or burn issue? Jim

Performance Summary:
      Cubic Inches:  457             Dyno brand: Stuska
      Power Adder:  N/A             Where dynoed:  Dale Meers Racing, Buffalo, KY
      Peak Horsepower:  528@5900
      Peak Torque:  555 @ 4000


Engine Specifications:
   Block brand, material, finished bore size, other notes:  1969 C scratch 428, 4.150 bore, CnC squared, aligned, torque plate honed
     
   Crankshaft brand, cast or forged, stroke, journal size: SCAT cast 4.25
     
   Connecting Rods brand, material, center to center distance, end sizes, bolts:  SCAT I-beam 6.700

   Piston brand, material (caster, hypereutectic or forged), dish/dome volume, static CR: Racetec, 14 cc dish, 10.03:1

   Main Bearings, Rod Bearings, Cam Bearings brand and size:  Clevite rod and main bearings, Durabond cam bearings

   Piston rings brand, size, other notes: Mahle 1mm/1mm/2mm standard tension

   Oil Pump, pickup, and drive:  Melling M57HV, Canton pickup, ARP drive

   Oil pan, windage tray, oil filter adapter:  Cobra aluminum repop, no tray, factory oil filter adapter

   Camshaft brand, type (hyd/solid, flat tappet or roller), lift and duration (adv and @.050"):  Custom Bullock's Power hydraulic roller, 2379@.050 intake

   Lifters brand, type:  Morel standard travel

   Timing chain and timing cover: Cloyes 9-position roller, Roush alum timing cover

   Cylinder heads brand, material, port and chamber information:  C8OE-N CJ, Les Schmader ported, 3/8 unknown aftermarket undercut stem valve, 2.09 intake, 1.67exhaust, Viton seals, ID spring locators

   Valve springs: Crower 160/420
 
   Rocker arm brand, type (adjustable or non-adj), material, ratio:  Factory nonadjustable, 1.73

   Rocker shafts and stands, brand, material:  Harland Sharp shafts, Trick Flow studs, Precision Oil pump end stands

   Pushrods brand, type, length:  Custome Smith Brothers 5/16, 3/8 ball/ball non-oiling

   Valve covers, brand, type:   69 CJ aluminum

   Distributor brand, advance curve information:  Pertronix billet, 38 total

   Harmonic balancer brand:  Stock, restored

   Water pump brand, type (mechanical or electric):   Tuff Stuff aluminum- electric powered on dyno

   Intake manifold brand, material, porting information:  Blue Thunder CJ, with divider notch cut

   Carburetor(s) brand, type:  750 dyno carb, but engine will run a Terminator Stealth

   Exhaust manifolds or headers brand, type:  Dyno headers