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oil baffle plate on small block chevy valve cover

Ask Away! with Jeff Smith: Why is There Wet Engine Oil on My Spark Plug Threads?

I have a 355ci small block Chevy that was rebuilt about a year ago and we included a set of Edelbrock aluminum heads, a Comp flat tappet cam, and an […]
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5.3 liter lt ecotec engine

Ask Away! with Jeff Smith: Some Good, Mild Performance Upgrades to a Direct-Injection Chevy Gen. V 5.3L LT Engine

I am rebuilding a 2014 L83 5.3L engine for my Silverado pickup and I’m considering making some changes to improve the performance slightly. I have looked into adding larger fuel […]
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chevy engine in a vintage muscle car

Ask Away! with Jeff Smith: Should I Put a Small Block or Big Block Engine in My 1974 Chevy Truck?

I am trying to decide on an engine for my 1974 Chevy project truck. The truck has a 350ci small block and a TH350 but I am thinking of going […]
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side by side comparison of GM alternator wiring connector ends

Ask Away! with Jeff Smith: How to Connect a GM CS-130D Style Alternator in Place of an Original CS130

I have been looking for how to wire a CS-130D alternator in place of my CS-130. I came across your article on how to hook up a new alternator in […]
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holes drilled in holley carburetor throttle blades

Ask Away! with Jeff Smith: Should I Drill Air Bypass Holes In All 4 Carb Throttle Blades to Improve Idle?

Recently you wrote an article that mentioned drilling holes in all four throttle blades on the Holley carb to change the blade position compared to the transfer slot. I have […]
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1966 chevy chevelle launching at a race track driven by Jeff Smith

Big Inches & Big Power: A Simulated Look at Maximizing Acceleration with Chevy Performance’s ZZ632 Big Block

The big news in Bowtie land these days is Chevrolet Performance’s monster ZZ632 tall-deck big-block crate engine that can make 1,004 hp on 93 octane gasoline. Everybody is buzzed about […]
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chevy performance transmission 6l80e

Ask Away! with Jeff Smith: Modern GM Transmission Upgrade Options for an LS-Swapped 1970 Chevy Nova

I’m looking into which late model overdrive automatic would be the best choice behind the 6.2L LS in my ’70 Nova. Chevrolet Performance has just announced availability of the 6L80E […]
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pump handles with ethanol E85 blended fuels at gas station

Ask Away! with Jeff Smith: Some Calculations & Guidelines for Blending Fuel Octanes

I came across your article on blending E85 with pump gasoline and I have a question. I have a C7 ZR1 that is un-tuned that needs 96 octane to prevent […]
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Jeff smith ttorqueing down main caps on the bottom of a v8 on an engine stand

Summit Racing Muscle Car Camshafts for Ford, Mopar, Oldsmobile & Pontiac

Nostalgia is a big part of the whole muscle car movement. The time-honored approach is to recreate a car or engine that captivated us during our formative years. Perhaps it […]
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ford contour electric fans with a dewitts radiator in a vintage chevy Chevelle

Ask Away! with Jeff Smith: Fitting an Electric Fan Conversion in a Big Block-Swapped 1966 Chevelle

I’m trying to help out a friend with a ‘66 Chevelle project. It has a big block with a six speed in it. I think it was a small block […]
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