Almost All stock parts from a 1969 300 HP 350 Not bored Crank not turned.
Pistons were upgraded to Cast 345NP and rings E251K cylinder walls were left with the 100,000 mile golden glaze polish.
New Bearings.
Stock bolts rods not resized Not balanced but new standard bore pistons are 30 grams lighter than factory ones.
1969 #186 heads milled and ported and stock valves used that were in the heads New valve job.
Z28 springs Old 270H 224 @ .050 .470" lift 110 LSA cam Iron Q jet intake Ported Ported exhaust manifolds. Q jet 750.
Keeping it way inexpensive here see.
Stock rocker studs and stock rockers and pushrods. Ground down stock retainers. New keepers though
Sweet spot on the shift was 6900 RPM it would pull to 7400.
Later stuck in a Herbert Solid flat tappet 235-245@ .050 .500" lift 108 LSA Headers and Tunnel-ram intake.
7600 rpm and it seen it daily and I pulled the cam and lifters after 75,000 miles and gave it to a buddy.
He ran it 2 years in his dirt car.
I still have that engine today but with Ported 601 heads and a 268H cam.
It has seen many 7600 rpm shifts and 2 8000 rpm peg the tach missed shifts by friends.
Every thing is square and round where it should be and the old school cams I run are very rev happy.
I run Beehive PAC springs today as I have had some of the newer "Z" springs break.
I DO NOT like a spring with damper anymore.
That same 1969 engine has been in 4 vehicles and I ran the highway at 6500 RPM for 15 miles.
It does not take much money to have a 7500 RPM reliable engine.
This 1969 350 has over 400,000 hard miles on it and still perfect bore and no crank wear.
Keep good oil and filters in them.