I plan on rebuilding my 300, what things should be replaced?

 

If you are going for a Blast From the Past Build, see below.
If not, you will be able to look through it and see what the basics should be.

300 H.P. @ 4600 rpm & 400 Torque @ 3200 rpm w/ a 9.5 to 1 C.R.
It idels @ 675 & is smooth as glass, a quarter was placed on top of the Valve Cover & it Did Not move Nor rattle @ least on the stand anyway.

Ross Pistons 4.060
Hastings Power Flex Rings .060
Federal Mogul Mains .020 Under
Clevite Performance Bearings Std.
Federal Mogul Cam Bearings Std.
Melling Torque Cam
Melling H.V. Oli Pump
Eagle H-beam Rods 6.300 2.100 Rod Journal
Crane Gold Race Roller rockers
ARP Main Stud Kit, Rocker Studs,
Fisher International Ballancer
Bore 4.060
Power Hone 4.060
Full P&P Intake & Exhaust
Performance valve job
Performance Balance job on Steele Crank w/ in 7 grams
Grind Rod Journals to 2.100
Plumb Intake for Heat via Water Pump
Deck Block to Square
Align hone to Factory specs
Deck block for Zero Deck
Offenhauser C Intake
Holley 1850 600 CFM
S.S. Borla 2 into 2 Header
8' of 3" tubes attached to Flowmaster 40's
4 Core Desert Radiator mated w/ the Original Radiator Housing
2 1,200 CPU Electric Fans, on @ 180*, off @ 170* mounted diaginally
MSD 6A Eclectronics Package & Coil
D.S. II Electronic Ignition

Happy Christmas and A Merry New Year

 

I believe in forgetting all the "trick" overkill and sticking with the basics. Really you can save a lot by just doing a good quality stock rebuild or overhaul. When I say stock I really mean OEM type parts. Also depending on the mileage of your engine you can re-use many of the internal parts like pistons, rods, and crank. I did that on a 390 five years ago and its still doing great. Lots of folks do it. As far as pepping one up a bit I think electronic ignition, e.f.i. exaust manifold, bigger carb, and electric cooling fan are the smart uprades.

This of course is coming from someone who is kind of a purist and thrifty. Just an opinion from the other end of the spectrum to give you a wide variety of ideas to play with. It really depends on what you expect out of the engine. My ideas are more for a dependable "daily driver", economical type of thing. Let us know what you end up doing....

To answer your question the things you must replace are:
main bearings
rod bearings
piston rings
wrist pins (?)
camshaft
lifters
cam bearings
timing gears-6cyl (chain on others)
oil pump and shaft
all gaskets and seals
valve job (worn parts requiring replacement will vary, valves can be reground and guides replaced. Pushrods and rocker arms may be reused.

 

"If not, you will be able to look through it and see what the basics should be."

I believe that's the point of what my statement above means, GT.