Technical 1965 Chevy 230/250

What is the max lift these engines can handle with stock replacement components and im also looking for a 4 barrel aluminum intake and long tube header for my engine my car is a 65 chevyii

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Check the auction site for Clifford products. You usually can see headers and intakes there.

You might be able to find some here as well. https://www.12bolt.com/

 

A small hint, check the distibutor for wear, they like to wear out on the upper end of the shaft, and make setting points difficult.

 

...oh yeah, you'll need to make sure the headers are for a Chevy II as well as the transmission you are using.The headers from a 250 in a '67 1/2 ton pickup will not work...nor will the ones from a Chevelle.

 

The 250 six I built in about 1976, used a cam with .509 lift; I don't remember the rest of the cam specs because it's been so long ago (cam and kit came from J.C. Whitney!!!). It was a mechanical lifter cam, and I had the 194, # 3864883 cylinder head, with stock chambers at about 60-62 CC's, that had also been surfaced .060. Tried to boost the compression ratio with the small chamber 194 head and having it milled; ALL 250 pistons are dished. I missed a second gear shift one time with the BW T-10 4 speed trans, over-revved/floated the valves in the little motor, and smacked number one exhaust valve against the piston head. It only put a nick in the piston, bent the valve, and I temporarily put the 250 head back on until I got the 194 head repaired. I also put a smaller hydraulic cam back in the motor. Clifford intake with a Holley 2 barrel mounted "sideways", Clifford headers with stock Nova dual exhaust, Mallory dual point with a Judson coil/Capacitive Discharge unit. Very fast car for only 250 CID!!! The downfall was the 3.08 gears; I had planned to go with 3.73's if I kept the 250. A better geared 4 speed would have also helped. Wound up selling the engine/trans to a friend with a 67 Nova 4 door, and went with a 327/TH350 in my Nova. The only bad thing about the little 250, was that I was always having to re-torque the flywheel bolts; it would vibrate/shake them loose. I did fix that issue using Loc-Tite and 100 Ft. lbs. torque to keep them in. So, .509 lift cam, with the head cut .060, and that was too much for the street. I am Butch/56sedandelivery.