I just rebuilt the YS 400 engine for my 71 GTO. I assembled the engine myself. I also machined and re-worked the heads myself. So, I was able to save some money doing that. It looks like I have right at $2,200 in everything. This is how I spent the money:
Parts:
Main bearings: $85.99, Rod bearings: $61.99, Gasket set: $95.99, Link Belt Timing set: $23.99, Valve Springs: $141.99, Rings: $80.99, Speed Pro forged pistons: $380, Water pump: $63.99, Oil pump: $66.37, Hardened oil pump shaft: $12.99, BOP 1 pc pan gasket: $59.99, Best rope seal: $19.99, Ferrea Stainless valves: $190, ARP Rod bolts: $80.31, Cam/lifters: $167.83. Parts total: $1,532.41
Machine work:
Vat, bore, hone, install cam bearings: $250, Deck block: $125, Turn crank: $125, Resize rods, $100, Press on pistons: $40. Machine Shop Total: $640.00
I cleaned and reused the timing cover, valley pan, balancer, oil pan, valve covers, bolts, push rods, retainers, keepers, windage tray, rocker splash shields and rocker arms.
You could spend more money by balancing the rotating assembly, line hoaning, head work, and having someone assemble the engine. Plus you could spend a lot more on different parts, such as hydraulic roller camshaft/lifters, forged rods, more expensive pistons, etc.
This engine is nothing more than a stock rebuild for a driver.
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