Q: The 350 Chevy in my ’73 Pontiac LeMans needs a new bumpstick, and I’m looking at COMP Cams Extreme Energy XE274-10 camshaft (part #CCA-CL12-246-3). I plan on running a TH-350 transmission with a 3,000 rpm stall speed converter and a 3.42:1 rear-end ratio. Plus, the engine has a 10.0:1 compression ratio, and the car has
Q: I am converting my rear suspension to a coil-over system, and I see spring options vary by the weight of the car. What is the most cost-effective way to determine the weight of my car? A: Many towns have a public scale you can use to weigh your car. If a public scale is not available,
I’ve got a Chevy small block 350 with a mild cam (I don’t know what the specs are – I bought the engine used), an Edelbrock Performer intake, Holley 750 vacuum secondary carburetor, and headers. All of this is in my ’72 Chevy pickup. The truck runs great except for a stumble when you first
Q: I have a 1984 Cutlass with a Chevy 350, flat top pistons, stock cylinder heads, .448-inch lift cam (350 horsepower grind), Edelbrock Performer RPM intake with a Performer 600 cfm carburetor, MSD 6A ignition, headers, and a dual exhaust with Flowmaster mufflers. The rear-end is a stock 7.5-inch GM 10-bolt with 2.42 gears. I
What’s the difference between a torque-to-yield bolt and a torque-angle bolt? I see these bolts used with newer engines. Are they the same thing? I’ve also heard that you’re not supposed to reuse these bolts. Is that true? Thanks D.T. Jeff Smith: First and most importantly, let’s distinguish between what we’re talking about. Your first
Q: I’ve found that many of the best intake choices for the Ford 351C are for the engine with 4V cylinder heads. What is the biggest difference between the 2V and 4V heads? I know the valves in the 4V heads are bigger, but what other differences are there? Can the 2V head be machined to 4V
Q: I have a Chevy Silverado K20 pickup with a 350. The engine is basically stock but is bored .030-inch over, has flat top pistons, and an Edelbrock Performer intake and 600 cfm carburetor. I just put in a COMP Cams Magnum 292 Series cam with new lifters, valve springs, retainers, etc., plus roller rocker arms. My
I have an Edelbrock 2×4 setup using the 500 cfm Endurashine carburetors for my 383ci small-block Chevy that I’m putting in a ’53 Chevy hot rod pickup. In a month or so I’m going to fire the new engine and I’m wondering if there are any changes I should make to the carburetors before I
Q: I have a 1976 Chevy Blazer with a 320 hp small block. It has a 600 cfm carburetor, MSD 6A ignition with an HEI adapter kit, and a heavy duty distributor cap and rotor. I keep melting a hole through the distributor cap, plus the center terminal (spring included) and the arc seal. I swapped
Q: I have a small block Chevy engine. Unfortunately, I don’t know what size it is! The bore is 3.87-inch so I assume it is a 283 or a 307. There is a canister type breather in the lifter valley; I understand that means the engine is a 1967 or earlier. I copied down the casting
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