566hp Old-School–Style Stack-Injected Small-Block
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Big-boned 837hp 1965 Impala SS
Eliminate
Starter Motor
Crankiness
11
Things You
Should Know
About Engine Oil
Mind the Gaps
How To Get
Precise Door
Fitment
Eliminate Starter Motor Crankiness
11
Things You Should Know About Engine Oil
Mind the Gaps
How To Get Precise Door Fitment
 1966 Chevy II Gasser
April 2025
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On the Cover
With an absolute sinister stance backed up by an 837hp big-block underhood, John Trigg’s 1965 Impala SS is one bad hombre. Its defiant demeanor makes it perfect for the cover of our Apr. ’25 issue. Check out the full feature starting on page 16. Image by NotStock Photography.
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All Chevy Performance ISSN 2767-5068 (print) ISSN 2767-5076 (online) Issue 52 is published monthly by In the Garage Media, 370 E. Orangethorpe Avenue, Placentia, CA 92870-6502. Postage paid at Placentia, CA. POSTMASTER: Send address changes to: All Chevy Performance c/o In the Garage Media, 1350 E. Chapman Ave #6550, Fullerton, CA 92834-6550 or email ITGM at subscription@inthegaragemedia.com. Copyright (c) 2025 IN THE GARAGE MEDIA. Printed in the USA. The All Chevy Performance trademark is a registered trademark of In The Garage Media.
Departments
Features
John Trigg’s 1965 Impala
Shane Jackson’s 1966 Chevy II SS
Paul Tholey’s 1967 Nova
Frank Antonaccio’s 1966 Corvette
John Camp’s 1969 Camaro
Tech
Using an Inglese Individual Runner EFI System to Build an Incredible-Looking Small-Block
How to Achieve Show Car Door Gaps on a Chevy Muscle Car
11 Facts You Need to Know About Engine Oil
Eliminating Starting System Crankiness
Part 1: Father and Son Build a 408ci LS to Drive ’N Drag
Chevy II Nova LS3 engine build with restored body and high-performance crate motor installation
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 BY NICK LICATA

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few years ago, there was a lot of buzz going on about classic muscle cars being powered by electric motors as the next big thing. Now, I’m not against using alternative energy for our commuter cars, but when it comes to converting a vintage Chevy into an EV, I’m not on board. With all due respect to those taking the initiative to put their talent and engineering knowledge to good use and keeping the planet’s health in consideration, an electric motor swap for a burly big-block or powerful LS is not the answer.

There are several reasons why electric motors will not appeal to the muscle car folks. For starters, vintage muscle cars are iconic symbols of raw power, classic style, and superior performance, all of which ensure these cars retain their iconic and cultural significance.

Truth be told, classic muscle cars were built for the thrill of speed and performance. The sound and smell emitted by the tailpipes or open headers of these cars wake up the senses and are essential factors in what draws us in. Those elements take us veteran enthusiasts to a time and place from the past while also offering a promising future for our classic muscle cars to shine—physically and metaphorically.

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1. ARP high-performance wheel studs for competition and street use; 2. Summit Racing LS CNC Billet Intake Manifold; 3. Billet Specialties’ Redline Steering Wheels
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ARP high-performance wheel studs for competition and street use
1. New Wheel Studs
ARP, renowned for engine-related bolts and studs, also offers high-performance wheel studs for competition and street use. Made from 8740 chromoly steel and heat treated to 190,000-psi tensile strength, these studs have rolled threads for improved fatigue strength and cadmium plating for protection. The Speed Studs feature a dry film lubricant. ARP provides replacement press-in studs for over three dozen OEM axles and hubs, as well as screw-in studs ranging from 1.950 inches to 3.470 inches for aftermarket axles.
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1970 Chevelle
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Builder: Ironworks Speed & Kustom (Bakersfield, CA)
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ith the Legacy Series of spec-built Chevelles, Ironworks Speed & Kustom set out to create a timeless vision that melds with modern driveability. This latest version builds off that platform with a fresh set of modern aesthetics and features. The SS stripes are gone in favor of a carbon-fiber vented hood. Keystone-style wheels have now been replaced with Forgeline AL305 wheels and color-matched calipers. Up front there’s a newly designed lower valance. Modernized side mirrors and plenty of blacked-out trim help contribute to the modern look. The icing on the cake for this build is the new color palette. One ideal color for the job is Porsche Miami Blue.

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Street Fighter
John Trigg’s 1965 Chevy Impala
BY NICK LICATAImages by NotStock Photography
J

ohn Trigg got started in the hot rod scene by spinning wrenches on cars back in his teenage years. He and his friends would mess with cars in the garage doing general maintenance and minor upgrades. That early interest in cars developed into a love for the Pro Street scene. “Hot rods and drag cars were always appealing to me, and being as my high school years went down in the late 1980s, my friends and I would spend many weekends at Gateway International Raceway watching drag racing, which is when I became totally intrigued by the Pro Street movement,” John recalls.

Like many young gearheads, John’s first foray into car ownership was modest. After high school, he drove a 1974 Impala—a street cruiser that was worlds apart from the wild drag cars that lined Gateway’s staging lanes. Still, the influence of those big-tire, big-engine Pro Street monsters left its mark. Owning a kick-ass street machine with a drag racing attitude stayed on John’s mind, even as life took him down a slightly different path of working as a fighter jet mechanic.

1965 Chevrolet Impala Super Sport, red, parked near a vintage train station, custom wheels, restored exterior
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Fully assembled engine with individual throttle bodies, polished aluminum components, and high-performance features
1. The Jim Inglese Eight Stack Injection intake on this big-inch small-block built by Keith Dorton of Automotive Specialists is designed to provide near-instant throttle response and great torque low in the rpm range. Perfect for a street brawler.
Modern Power with Old-School Cool
Using an Inglese Individual Runner EFI System to Build an Incredible-Looking Small-Block
BY Jeff HuneycuttImages by THE AUTHOR
T

he venerable first-generation Chevrolet small-block has been out of production for decades now. Since then, multiple generations of engines from various manufacturers have come and gone, but the small-block is still everywhere you look. Of course, it remains incredibly popular in several forms of racing—everything from drag racing to oval track and beyond—and it remains a favorite with hot rodders in general. Its reputation as a reliable engine that makes great power without breaking the bank is well deserved.

Besides the ability to make big power pretty easily as well as its durability, one of the great advantages of the classic small-block is its versatility thanks to tons of aftermarket support. We’ve seen great small-block builds with carburetors on tunnel port intakes, giant roots blowers, twin turbos, you name it. And they’re all great. But one setup we don’t often see is individual runner intake setups like you often think of on old-school sports cars. That’s why we were excited when engine builder Keith Dorton of Automotive Specialists told us he was building a big-inch small-block complete with stack injection EFI from none other than Jim Inglese Eight Stack Systems and instantly decided to tag along for the build.

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By Dave Wallace Images by Patrick Lauder
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Shane Jackson Still Drives His First Car, Only Faster
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nlike most of us, Shane Jackson has none of the usual regrets about letting his first Chevrolet get away. It was a true granny mobile; a hand-me-down from his big brother at age 16. Their bracket-racing parents, Jamie and Janice Jackson, became second owners at 48,000 miles after the first, a female neighbor, died. “A six-cylinder Chevy II was just an old car in the 1980s,” Shane recalls, now 53. The GM factory in nearby Fremont had pumped countless copies into San Francisco’s suburbs for two decades. The Jackson family’s underpowered training wheels stayed reliably stock, other than the bling of aluminum Weld rims made fashionable by Pro Stock racers of the era. Shane has the old photos in scrapbooks.

1966 Chevrolet Nova Gasser front-side view showcasing raised suspension, chrome wheels, and drag-ready stance
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1. Panel gaps in the muscle car era are all over the map. Old Anvil Speed Shop shows you how to make them uniform.
Mind the Gap
How to Achieve Show Car Door Gaps on a Chevy Muscle Car
By Tommy Lee Byrd Images by Taylor Kempkes
O

ld cars have personality, which means each one is a little different. Tolerances weren’t as precise as today’s machines and if you’ve ever tried to achieve show-quality panel gaps on a muscle car, you know it’s a large task. Sometimes you can get lucky and make some adjustments that make the gaps uniform, but the reality is that most cars from the 1960s and 1970s had huge gaps. Wide gaps are acceptable on an original car, or a driver, but details truly matter on high-end cars, like Mike Selvaggio’s 1966 Chevelle station wagon that’s currently under construction at Old Anvil Speed Shop in Orange, California.

This car will have top-notch pieces inside and out, and a great way to accent the high-end workmanship is to dial in the panel gaps. This project is naturally more challenging because it’s a four-door, meaning there are more panels to perfect, but it’s all part of the metalworking process for Brandon Gerringer, a fabricator at Old Anvil Speed Shop.

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Paul Tholey’s 1967 Chevy Nova

By Scotty Lachenauer Images by THE AUTHOR
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t turns out 1971 was a good year for young hot rodder Paul Tholey. The fresh-faced mechanic from Willow Grove, Pennsylvania, was on the lookout for a new ride, and luckily the stars aligned. This 1967 Chevy II practically fell into his lap.

You see, the local parties were a mecca for good times and going fast, with muscle car freaks always ready to talk shop. Paul was in the right place at the right time when he overheard a Harley guy complaining about his Chevy locking up between shifts. Sensing an opportunity, Paul reached out and worked his magic to secure a deal for the needy car. As they say, the rest is history.

1967 Chevrolet Nova, cream exterior with black vinyl roof, restored classic muscle car with sleek chrome accents
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Slick Information
11 Facts You Need to Know About Engine Oil
BY Jeff SmithImages by The Author
I

f you ever feel the need to enliven a conversation among gearheads during a bench racing session, merely float engine oil into the discussion and then sit back and watch the fireworks shoot around the room. The problem with all the resulting banter is that there are always plenty of opinions offered but a discouraging lack of facts. So, we’re going to enhance this discussion with 11 facts about engine oil along with additional tidbits of which you may not be aware that you will find useful for your current or next engine project.

1. The Basics
Let’s start off with some fundamentals. Engine oil is made up of two components: the base oil and the additive package. It’s the combination of the base oil and its additives that dictate its performance. Some oil is better at the performance game than others.
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Frank Antonaccio’s 1966 Corvette

By NICK LICATA Images by Jason Matthew
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rank Antonaccio’s background as a retired auto technician has afforded him the knowledge and expertise making him proficient at restoring classic cars. He’s also no stranger to vintage Corvettes as he’s done three to four stock restorations, but when he came across this 1966 Corvette he decided to take a different approach and create a restomod tribute to the legendary Sunoco Penske racing Corvettes.

1966 Chevrolet Corvette, blue, front angle, highlighting aggressive hood scoop, classic styling, and racing details
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Powermaster starter installation with torque adjustment using a ratchet
Starter Motor Tech
Eliminating Starting System Crankiness
BY JEFF SMITH Images by the Author
S

tarter motors are kind of like the guy behind the counter at the auto parts store. When he’s competent and efficient you may not notice. But if he can’t find a stock spark plug for your 350 small-block 1969 Camaro, this attracts your attention and not in a good way. Starter motors can be like that—the only time you notice them is when they don’t work.

Starters don’t contribute to horsepower, so they are often overlooked—until they don’t do their job. Such was the case for a stout small-block we found ourselves working on recently that offered up more than a little irritability. The owner had recently purchased his XS-series Powermaster starter motor, but it wasn’t happy. The noise it made during cranking was approaching painful.

It was obvious something wasn’t right. First, we looked at the relationship of the starter pinion gear to the flexplate. With the engine out of the car, it was easy to measure the clearance between the pinion gear and the flexplate. The proper spec for gear clearance was supposed to be 0.040 inch, but our check revealed it to be in excess of 0.100 inch.

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John Camp’s Pro Touring 1969 Camaro
By NICK LICATA Images by Luke Munnell
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ohn Camp’s love for cars started early on. “I was 12 years old when I began helping my dad work on cars—he put me in charge of holding the flashlight. It didn’t seem like a huge role, but I paid attention and soaked up information like a sponge. By the time I was 16 he was holding the flashlight for me,” John laughs. “That’s basically how I was introduced to the car world.”

1969 Chevrolet Camaro in stunning blue, custom wheels, set against a scenic desert backdrop
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Chevy II Nova LS3 engine build with restored body and high-performance crate motor installation
Extended Family Affair
Part 1: Father and Son Build a 408ci LS to Drive ’N Drag
BY JOHN GILBERT Images by the Author
T

he corniest and most overused story title in the book for a car magazine is “It’s a Family Affair” but sometimes you just have to go with it … or maybe not. The saga of 15-year-old Hunter Hay and his dad, Ron, building a 408ci stroker LS engine to run in a drive-and-drag 1966 Nova when Hunter turns 16 years old is really a story about Hunter and Ron’s help and support from their extended race car family.

At age 11 Hunter was helping his dad service and prep a Fox-body drag racer. At that early age Hunter learned how to cut the lights when Adam Burkholder and his son, Abe, invited Ron and Hunter to check out RC drag racing. It was an awesome hobby with a full-scale Christmas tree, a real timing system, and running the quarter-mile at scale. Hunter and dad traveled from Oklahoma to Texas, Kansas, and Nevada scoring several NPDR no-prep RC drag racing championships.

At age 13, thanks to Chris Maybriar at Mid America Dragway in Kansas, Hunter went through the process and gained his NHRA license followed with a WDRA license. Hunter borrowed Ron’s hopped-up 2003 GMC shortbed, running it at the NHRA Summit Racing Equipment Series and WDRA Summit Racing Equipment Bracket Finals and did quite well. Now, several seasons into it with a long list of wins and championships, Hunter and Ron’s focus is having the 1966 Nova ready for Hunter to drive to high school during the week and race on the weekends.

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