Budget 350 build 

The Beginning



I had a 350 Chevy in the garage for several out of a 1971 Corvette (VO609CJK) unfortunately it was a 2 bolt main block, stock cast iron crank and, and 3973487 casting heads  

 It was bore .030 over, the connecting rods resized, decked, crankshaft polished, line honed, installed Keith Black pistons and moly rings on the rods a new 8″ stock harmonic balancer. then the rotating assembly was balanced  

A little head work

I had the heads decked about .020″.  (with the new pistons the compression ratio was now 9:1) updated to new stainless steel Ferrea (1.94″ intakes, 1.50″ exhaust) valves and did a 3 angle valve job.  I placed a 52 degree back cut on all the intake valves to help with low lift flow numbers. The 487 heads were got hardened valve seats on both intake and exhaust making them compatible with unleaded fuel. They were pocket ported in the bowls about 1″ under the valve seat, reduced the valve guide, blended in the new hardened seats, opened up the exhaust ports, and cleaned up the casting inside the intake port then  Comp Cams valve springs, steel retainers, and clip were installed 

Dyno testing 

The 350 was bolted together using Fel-Pro gaskets, a Mellings standard PSI and volume oil pump, 6 qt.oil pan, stock push rods and rocker arms, Edelbrock Performer RPM intake manifold, MSD street fire HEI distributor, and a Demon 625 carburetor


Performing the usual 20 minute break-in on the DTS powermark dyno I was able to get the Budget 350 to pump out 356 horsepower @ 5300 RPM and 386 lb-ft torque @ 4300 RPM. Not bad considering this engine was rated at 270 horsepower new from the factory.