374 Olds 350 stroker build

[olds307 and 403]

+Street cred points for running the '73 covers.

Agree. The most confusing part about these covers or this date code verified 73 motor not a spec of gold paint under the corporate blue paint. It must have been stripped and painted with a high quality paint. It should have been Gold from the factory.

 

[DRIVEN]

That is a bit odd. Given GMs propensity for using what was on the shelf, I guess anything is possible. In '73 the 350s were gold and 455s were metalic blue. But my understanding is that BBs got the notched valve covers. Did the 455s get 'Oldsmobile' valve covers too? Maybe the particular engine those covers came off of was originally a marine application?

 

[olds307 and 403]

That is a bit odd. Given GMs propensity for using what was on the shelf, I guess anything is possible. In '73 the 350s were gold and 455s were metalic blue. But my understanding is that BBs got the notched valve covers. Did the 455s get 'Oldsmobile' valve covers too? Maybe the particular engine those covers came off of was originally a marine application?

Not impossible, we got some oddball stuff up in Canada. I remember working on a 73 Cutlass we pulled the valve covers, had Oldsmobile on them in the factory Gold, not the super shiny and lighter aftermarket colour, almost Butterscotch.

 

[olds307 and 403]

Here is a list of the parts and costs for my build:
76 Oldsmobile 350 $100 US
330 forged crank came balanced with Speedpro 18cc dish forged pistons and stock rods, bought 10 years ago, sold the pistons and rods $300 US
Rusty 330 flex plate $35 US
Good stock balancer $0
Rebuilt Qjet, either this Everday Performance or the one built with Cliff Ruggles parts= $350 US
NIB Performer RPM, a steal now at $100 US
Rebuilt #6 heads with 2.07"/1.56" valves, bowls opened, new guides, basic valve job and machined for positive seals a steal at $325 USD
Bought used Comp Roller tip rocker arms with the necessary 7/16" rocker stud conversion $150 US
Optional Scorpion 1.72 SBF rocker arms $200 US
HS rocker which require rocker pad milling $400 US
Used Johnson Hy Lift Hydraulic roller lifters $100 US
Roller cam, springs, push rods, thrust bumper and Cloyes 9 way Billet timing set $1125 US
Mahle 4032 forged 4.100" pistons, pins and rings $625 US
Molnar DR forged with ARP 2000 bolts $615 US
ARP main studs $65 US
Cloyes cam bearings, Amazon clear out $8 US!
Rod and main bearings TBD
Canton Oil pan and pick up around $450 US
Flowkooler reverse flow water pump $100 US
Mahle gasket set $185 US
Felpro shim intake gaskets, composite won't fit without cutting the intake or heads $25 US
Engine paint $100 US
Accel 8.8 25 ohm race wires, no longer made $25 US
HEI Ignitor 3 module $100 US
Accel cap and rotor $20 US
Accel Brute Thunder coil $100 US
Adjustable vacuum advance and springs $30 US
AEM wideband $180
Davies Craig adjustable fan controller $110 US
Autocity 2 core 1 1/8" cores aluminum rad $300 US
Oldsmobile super compact mini starter $175 US
Sanderson headers still need finish work and coating $400 US
Good 2004R came with a 73 350 $325 USD
CK .550" boost valves and spool valve $105 US
CK improved GN Billet Servo $130 US
Good used TH2004R deep aluminum pan $140 US
Bore and hone the block to 4.100" TBD
Clean up mill on the deck TBD
Install Cam bearings TBD
Align hone the mains TBD
Grind the crank to .0022" to .0025" rods and .0025" to .0028" mains TBD
Balance the rotating assembly, weight should have to be removed for the TBD lighter bob weight TBD
Add another $100 in antifreeze and oil.
This doesn't include my time to assemble the motor, degree the cam and rebuild the carb.
Not for the faint of heart or light of wallet😱

 

[olds307 and 403]

Off the motor.

The temporary replacements

A couple of coats of paint stripper

 

[JAMCAR223]

I feel your pain from the skinnier wallet... 😆

 

[olds307 and 403]

Ready for paint!

 

[olds307 and 403]

Apparently Thornton can't ship paint across the border, VHT it is.

 

[olds307 and 403]

It looks like 7/16" studs and balls won't fit the 3/8" Comp roller tips. So I will order 3/8" to 7/16" studs. All these parts arrived.

 

[JAMCAR223]

Bummer... Can you return them?