Author: coupe32

synthetic vs mineral oil

My rebuilt 340 with a flat tappet cam now has about 1500 miles on it now. I am currently using Valvoline VR-1 10W30 oil. I was wondering if I should now switch to a synthetic oil. What are the pros and cons? Never ran synthetic oil before.

storing an engine block

I picked up a standard bore 340 block over the weekend. I just wanted one for a spare. They are getting harder and harder to find. I was told that greasing it up good sometimes won’t even stop the rust. I was thinking of using a spray grease such as a white lithium grease. I have it cleaned up…

cylinder sleeves

I had an extra 340 block sitting in the garage for a few years. Had it all greased up and covered after I bought it. It had some rust in #5 cylinder but I didn’t think it was too bad. I decided to pull it out and clean it up and I took it to the machine shop today. Got bad news. Cylinder was…

New Edelbrock 2176 ported intake

I have a brand new/never used Edelbrock 2176 Performer intake manifold that was ported for 340-360 heads by Hughes Engines. Ordered this new from Hughes Engines. It is still in original box and wrapped in the clear plastic it came in.
The Hughes Engines receipt is with it. Shipping is about…

1946 dodge WC 1/2 ton pickup truck

Truck has original drivetrain with 6 cylinder flathead ,3 speed on the floor. Body is in very good condition but tailgate is missing. Floorboard is solid around center wood insert. The only rust I can see is a small amount at bottom of the drivers door on the inside. (easy fix) Truck is bright…

holley carb problem on 340

I can’t seem to get the Holley carb tuned the way it should be. I’m thinking about going to a smaller size carb. The carburetor is a Holley 700 4778 double pumper with mechanical secondaries. I bought this carb new and ran it on another 340 engine with (5 speed manual tranny) and it ran a little…

vacuum advance question

Got my rebuilt 340 running last week. Seems to run good but I can’t get it to idle down. I am running a 700 Holley double pumper carb. I removed the vacuum advance hose from the port on the carburetor and plugged the port. I set the timing at 34 degrees total and the idle at about 8oo RPM. When…