434 Chevy Small Block Engine - Engine Builder Magazine

434 Chevy Small Block Engine

Bruce Nelson takes customer satisfaction very seriously. He doesn't want customers coming back to his shop for the wrong reasons, and this 550 hp 434 Chevy small block was no exception.

Bruce Nelson, owner of Engine Factory, Inc., knows if you don’t treat customers right, they’re going to put you on the internet in a bad way. For that reason, when you visit the Engine Factory website, the first thing you see is the Lebanon, NJ-based shop’s five-star rating.

“We want the engines to look absolutely beautiful, and we work with customers hand-in-hand to give them custom options,” says Nelson, who started the business in 1969. “We try to satisfy the customer as much as possible. With each customer who calls in, we ask them a series of questions to help give them what they need and want. We ask them what they are doing with the engine? Will it go in a show car, is it a cruiser, or are you going to the drag strip? We try to put together the exact engine that a customer will be 1,000 percent satisfied with.”

Engine Factory will build almost any engine, however, one of the shop’s more popular engine builds is the 434 Chevy small block.

This particular 434 Chevy features the all-new Dart SHP block with splayed 4-bolt main caps, as well as Dart aluminum cylinder heads and air gap intake manifold. The crank and rods are from Eagle, while the custom hydraulic roller camshaft and the roller rockers are from Comp Cams. The high-pressure oil pump comes from Melling, and the oil pan is from Moroso. Engine Factory also used Clevite H-series rod and main bearings.

“I wanted to develop engines that when people get them they don’t have to go out and search for any other parts to get the engine up and running,” Nelson says. “You’re not going to have to run out a buy a thermostat housing or a throttle bowl or the right choke set up, etc. We use American-made parts and refuse to go out and lower the quality of what we do. We use companies that are true and tested. You don’t want to hear from that guy leaving your shop until he is ready for another engine.”

In addition to using numerous high-quality parts on the 434 Chevy, Nelson makes sure his guys live run the engine before it goes out the door.

“We live run the engine for an hour in our shop because we feel it is more important than 30-second dyno pulls in terms of understanding real world conditions the engine will face,” he says. “We hook up a radiator, exhaust and electric fan and run it to make sure everything is 1,000 percent good to go. Everything is gone through extensively so we can produce an engine that won’t come back with a problem.”

Every engine that Engine Factory builds is also documented with photos and video. These are available for customers to look at as Nelson and his team build the engine.

“We know everything that could possibly go wrong, and we want to cover our bases so that when our customer gets the engine, it’s something he can put in and have total confidence with and feel really good about.”

All said and done, this 434 Chevy small block produces 550 horsepower and 530 lb.-ft. of torque. Another satisfied Engine Factory customer.

Engine of the Week is sponsored by Cometic Gasket

To see one of your engines highlighted in this special feature and newsletter, please email Engine Builder managing editor, Greg Jones at [email protected]



You May Also Like

ProCharged 5.000” Bore Space Billet Big Block Chevy Engine

One of the first 5.000″ bore space big block Chevy engines that Visner Engine Development has come out with in this new design, this billet engine was built by Nick Bacalis of Bullet Racing Engines for a 1971 C10 belonging to Michael Rieck. Check out what 4,000-plus horsepower looks like!

billet big block Chevy engine

When the topic is high-quality, high-horsepower, high-performance engines, Bullet Racing Engines is a shop that’s always in the conversation. It also doesn’t hurt that the House Springs, MO-based engine and machine shop is affiliated with Larry Jeffers Race Cars (LJRC), which is well-known for building amazing race cars and chassis. Head engine builder, Nick Bacalis, is always churning out impressive engine builds, and as such, we caught up with Nick at the 2023 PRI show to talk through a ProCharged 5.000” bore space billet big block Chevy engine he had built that was on display inside Michael Rieck’s 1971 C10 truck.

3,500+ HP 427 cid Billet LS Engine

At ACE Racing Engines, Stefan Rossi’s and Laura Pugh’s hard work has been paying off in the form of increased awareness and business, a new shop space out in California, and best of all, success on the track from numerous customers. Check out this excellent example of a maximum effort, billet LS engine for a drag-and-drive application.

Supercharged 388 cid LS Engine

Hoping to reach new heights in the mile, this Cadillac customer brought his car and engine in for the School of Automotive Machinists & Technology to work their magic on. See what went into the supercharged LS engine platform.

Cadillac Supercharged LS engine
Supercharged 521 cid Brad Anderson Hemi Engine

Amanda Hoover and Eddie Rogers have been campaigning their Chevelle from Hell for nearly a decade. Helping give the car its name is a screw-blown 521 cubic inch Hemi engine. Check out the details of this build done by Chris Duncan Race Cars!

408 cid Nitrous LS Engine

During a tour of SAM Tech, we also got a chance to speak to a few students. One in particular, Jaylon Victorian, was nearing completion of a 408 cid nitrous LS engine. He applied his new engine building knowledge and skill set to the build, and it shines through in our latest Engine of the Week.

408 cid nitrous LS engine

Other Posts

Demon Motorsports’ Turbocharged Toyota 2JZ Engine

It was hard not to noticed Damon Elff’s Toyota Supra and its turbocharged 2JZ engine during Sick Week 2024 as it was basically the only Supra there, and the 2JZ made some wicked sounds at the start line. We got a chance to speak with Damon, who owns Demon Motorsports, about his Supra/2JZ combo and

Point One Small Block Chevy Head Studs

Point One’s E190 head studs boast an impressive 190,000psi nominal tensile strength and are made from grade 8740 steel sourced only from US mills.

Turbocharged 5.0L Coyote Engine in a 50th Anniversary Mustang Cobra Jet

For the last couple years of the PRI Show, Frankenstein Engine Dynamics has had an impressive booth space filled with cool product and cool cars. Case in point, during the 2023 show we stumbled upon a 50th anniversary Mustang Cobra Jet owned by Martin Martinez of Junior Performance. Martin has already made this a seriously

Turbocharged LML Duramax Engine

We all know Tony and Tyler Burkhard of Dirty Hooker Diesel have some awesome drag racing and truck pulling Duramax powerhouses. But, the shop’s employees also have some awesome diesel combos. Check out Evan Berry’s turbocharged LML Duramax diesel engine!