Oldsmobile 350 Engine - Air Cleaner to Oil Pan and TH350 with Converter

The build on my 455 is finished and am considering selling my SBO 350 complete from air cleaner to pan including headers, ignition, starter, all pulleys, belts, etc….essentially a drop in and go solution. It does not include a fuel pump as I am running electric. I prefer to sell complete versus parting out as it is just easier for me. At this point I am not sure what the engine is worth so looking for some input from the Oldsmobile community. I was thinking somewhere around $3,000 (of course there is a lot more invested). The engine has about 4,000 miles on it. The build was done in 2008, but upgraded the heads and cam in 2011.

Details for all information I can recall. I am sure I am missing some things:

Block - 350, .030 without torque plates, line honed, surfaced (not zero decked). All new oil galley plugs installed in the correct locations. All machine work including external balancing of complete rotating assembly performed by D&L Performance Machine in Wichita Falls, TX.

Crankshaft – Automatic nodular crankshaft, .020 both mains and rods. Prepped by same machine shop, nothing exotic. Crank was purchased from eBay seller

Crankshaft Main Studs - ARP, PN ARP-184-5401, purchased from Summit Racing

Main Bearings – Clevite, PN MS805P20, purchased from Summit Racing

Rear Main Seal – Felpro V8 Ford, PN FEL-BS6141, purchased from Summit Racing

Connecting Rods – Factory rods, sides polished, new ARP rod bolts. Purchased from eBay seller

Connecting Rod Bearings – Clevite, PN CB684P .020, purchased from Performance Automotive Warehouse

Pistons and Rings – Speed-Pro Power Forged L2320F30, rings were not file fitted, purchased from Rocket Racing & Performance

Oil Pan – Milodon 7 qt, PN MIL-30305, purchased from Summit Racing

Oil Pan Gasket – Milodon, PN MIL-40800, purchased from Summit Racing

Oil Pump – Melling high volume oil pump, PN MEL-M22FHV, purchased from Summit Racing

Oil Pump Pickup – Milodon bolt on pickup, PN MIL-18411, purchased from Summit Racing

Oil Pump Stud Kit – Mondello, PN PS-425, purchased from Mondello

Oil Drive Shaft – Milodon, PN MIL-22575, purchased from Summit Racing

Oil Pan Stud Kit - Moroso, PN MOR-38350, purchased from Summit Racing

Timing Chain - Cloyes Adjust a Hex, PN CLO-93113A, purchased from Summit Racing

Camshaft Accessories - Cam thrust bolt with brass button PN DMR 5740 and fuel pump eccentric PN DMR-2892, purchased new from DMR

Camshaft and lifters – Hydraulic Erson, PN E540000, see attached card. Lifters, PN HA951, purchased from Mark Remmel (cutlassfi). Degreed and verified cam specs were correct

Valley tray – Mondello, PN VT581, purchased from Mondello

Pushrods (5/16)– OPP, PN 581-8350, 5/16X.083 4130 8.350” size measured with adjustable pushrod tool, purchased from OPP

Heads - #5 heads, 2.07 intake, 1.65 exhaust, ported, purchased from Classic Oldsmobile member 88hurstolds in September of 2011

Head Studs – ARP, PN 184-5401, block mounting holes were bottom tapped to accept studs, purchased from Summit Racing

Head Gaskets, Mr Gasket, PN MRG-5788G, purchased from Summit Racing.

Rocker Arms – Harland Sharp, PN UNK , purchased from OPP

Intake - Edelbrock Performer RPM, PN 7111, purchased new from eBay seller

Intake Gaskets – Mr Gasket, PN MRG-4694G, purchased from Summit Racing

Carb – Edelbrock Thunder Series AVS 650, vac secondaries, electric choke, PN EDL-1806, purchased from Summit Racing

Edelbrock Air Cleaner, PN UKN and K&N reusable element, purchased from Summit Racing

Distributor – Mallory Unilite, PN MAA-4763401, purchased from Summit Racing

Ignition – Malloy Hyfire, PN MAA-6853M and Pro Master Coil, PN MAA-30440 purchased from Summit Racing

Wires – MSD 8MM

Headers – Flowtech Ceramic Coated, PN 31150FLT, purchased from Holley on eBay. They never sealed right for me, but did not want to spend the $$$ knowing I was going to put in a 455. I would not advise using them, but that’s up to the buyer.

Header Bolts - Summit Racing, PN SUM-G1490, purchased from Summit Racing

Water Pump – FlowKooler, PN 1775, purchased new from eBay seller

Thermostat Housing – RobbMc, not polished, PN unknown, purchased from RobbMc.

Thermostat – Milodon 160 degree, PN MIL-16400, purchased from Summit Racing

Starter – Summit Protorque , PN SUM-820311, purchased from Summit Racing

Valve Covers – Holley, PN unknown, don’t recall where I purchased, but think it was eBay.

Valve Cover Gaskets - Mr Gasket, PN MRG-5875, purchased from Summit Racing

Valve Cover Stud Kit – ARP, PN ARP-400-7606 qty 8 and ARP-400-7606 qty 12, purchased from Summit Racing

Fan – Flex-a-lite, PN FLX-1319, and 2” spacer PN FLX-14556 purchased from Summit Racing

Alternator – Summit 1 wire alternator 100 AMP, PN SUM-G1667A, purchased from Summit Racing

Balancer and Flex Plate – Pioneer, PN UNK and PIO-FRA-102 respectively, purchased from D&L Performance Machine, Wichita Falls, TX

Balancer Bolt - APR, PN 180-2501, purchased from Summit Racing.

As previously mentioned, the engine has about 4,000 miles on it and is solid, oil pressure hot is ~ 45 PSI. I recently changed gauges from a Sun-pro electric gauge to an Autometer electric gauge and somehow went from 55 psi hot to 45 psi. Not sure which one is right. With the 160 degree thermostat, original shroud and flex-a-lite fan, the engine has never overheated and has never offered to. I don’t recall ever seeing it go above 190 degrees.

I have no performance data for the engine as it was never dynoed. Engine runs great, but probably needs a little more timing adjustment (possibly different plugs too). I just have not had the time.. I only run 93 octane and always put stabil in with each tank fill. You can hear the engine run as its in my car and we can test drive it for about the next week or so before I remove it. I have a short video, but could not upload it for some reason. I can send separately to any interested parties.

I also have a rebuilt TH350 with several performance mods. It comes with a Coan 2800 RPM converter. It has the same amount of miles as the engine. This would be a separate purchase price and we can do a deal for the engine and transmission.

I don't have the time or desire to ship so will need to be picked up at my home.

I live in Grant Valkaria, FL, which is close to Melbourne. PM me or email at rkkirsch911@gmail.com if you have any questions.

 

Fwiw good luck. I tried selling a tried and trued 12 sec sbo with trans for 3k no none wanted it. Seems used engines are a hard sell.