Engine/Performance

I’m building a 273 from a ’66 Coronet to swap into a ’64 Dart convert. I’m using very slightly worked 302 casting heads from an ’87 318. I have a factory 1967 273 4-Bbl intake. It has the standard smallblock intake bolt angle, so it will…

I would like to know if there will be any benefit to port matching my headers to the exhaust ports of my ’73 Challenger’s 360? There is a big stepup. Here’s the engine specs: fresh mild 360 with Erson Hi Flo cam (2700‑5800) and heavier…

Stellantis unveiled its new 3.0-liter Hurricane Twin-Turbo inline six-cylinder engine that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many naturally…

The head gasket blew on my '97 Neon twin cam engine). I replaced it, usingone of those new layered-steel gaskets. Ialso had the head shaved a few thousandthsat a local machine shop. I have the book andthe instructions that came with…

After many years of searching through bookstores for your magazine, my wife finally bought me a subscription. I kind of miss the bookstore.I have a 1963 Dodge Dart GT Convertible which is in very nice shape. It has a 225 slant six, and I…

I purchased a ’99 B1500 “shortie” with the 3.9L with only102K on it thinking it would be capableof towing my 7x12’ single axle landscapetrailer and get “reasonable” fuel mileage.Well…what a mistake. The damn thing hasnever gotten over 15…

I am working on a retro install of a6.1L/545RFE into a ’68 Charger. I was wonderingif you have had any experience withthe Evans waterless coolant? From whatI’ve read, it does a better job of cooling,doesn’t build up any pressure or…

I have a 1964 383 4-barrel motor with the518 Heads. I would like to know what theCR would be with a zero deck height. Themotor is bone stock.Usually, CR “guesstimate” questionsare dismissed out of hand by me, becausethere’s a bunch of…

I need your knowledge and wisdom.I picked up an industrial “413-1˝, withthe 2658836 block casting, the forged steel6-bolt crank, etc.I’ve heard that these are 426 wedgeblocks, underbored to 413. I’ve also heardthat they may be thick enough…

Fragged the old 440. LY rods, 2355pistons and 6500-6800 rpm shifts. Boom. Ibought a low deck 500 stroker shortblock.Max wedge heads, 292 cam, 2 in. TTi headers.800 vac. sec. carb, single line externaloiling, Melling HV pump. Almost 80…