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CORVETTE ENTHUSIASt Retrofit Head Up Display In An Early C5 CORVETTE ENTHUSIAST CORVETTE king ray 620 HORSES hit the street! King Ray 620 Horses Hit The Street! Also Inside: www.corvetteenthusiast.com january 2007 C1: Modern Made ’60 C2: St. Louis Final Assembly Tour C3: Weather Stripping Without Compromise C4: Convertible Greenwood CrossFire C5: Nomad Returns As A C5 C6: Convertible With A Touch Of Z Vettes On The Rockies A Shark For The Street Corvettes At Carlisle How Hot Is YOUR Spark? U.S. $4.95 / Canada $6.25 january 2007 Display until 12/04/2006 VOLUME 10, ISSUE 1 King Hits T heRay Road With the last bolt tightened, it was Looking stock until you notice the extra gate for fifth gear, the five-speed transmission greatly enhances King Ray’s road-going characteristics, a definite must-have. 24 CORVETTE enthusiast time to take him for a spin We’ve said it before, building a project car in a year is not an easy task, even for veteran Corvette restorers like Jerry’s Vette Service. Invariably, there will be some snags along the way but, again, we were able to have the car finished in time for its big debut at Corvettes at Carlisle, thanks to everyone who partnered with CE to see the project through. Once every bolt had been tightened and all the points checked again and again, there was only one thing to do — turn the key! By Andy Bolig That’s exactly what I had the privilege to do this past August. The instructions of King Ray’s owner, Jerry Clark, were specific, “Press the throttle slowly three times and hit the key.” Little did I know that firing up King Ray was very similar to waking a water buffalo with a bullhorn. Things got real raucous, really fast! The car leapt to life and the sound emanating from those 3-inch Sweet Thunder side pipes was sweet indeed. The car fired off in about a quarter revolution of the engine, and it became obvious, almost instantly, that there was a lot of air traveling through those pipes. Inside Jerry’s shop, it was a sound that only The 3-inch side pipes just fit under the Eckler’s-supplied side covers. Wheels are from American Racing (17x7 front and a hardcore enthusiast could appreciate. 18x8 rear) with a 4.75” backspacing and tires are Goodyear F1 GS-D3s (225/55-17 front and 255/45-18 rear). C O R V E T T E e n t h u s i ast 25 ABOVE: If not for the orange valve covers, the install could be mistaken for stock. Using newer parts, but keeping a factory appearance keeps King Ray a classic, yet contemporary. CENTER: Jerry had these air cleaner flags printed up for King Ray. They could easily be overlooked, but are definitely a finishing detail. BELOW RIGHT: Speaking of details, you can just see the spacer plates’ seam where they meet the intake. Machining makes them almost disappear. BELOW LEFT: We needed to use an MSD PN 8547 distributor to make up the difference between the oldstyle intake and the raised-deck block. This distributor has an adjustable sleeve to set the proper cam engagement and is designed for Donovan tall-deck racing blocks. It works fine in the 572 for this application. There was a little bit of carb work to be done, but the car settled into a nice trot at idle, giving the antenna mast a constant wiggle to the tune of the dual pipes. Sure, there’s nothing like the sound of a big-block breathing through a set of side pipes at wide open, but with the right compression and camshaft, the sound at idle can also put a smile on your face, especially if you’ve got the steering wheel in hand. But, let’s not get ahead of ourselves. 26 CORVETTE ENTHUSIAST steering bracket from a big-block and simply cut off the power steering portion. This mounted the alternator in the right spot and gives even that 572, a feel of originality. Mixing elements of original and aftermarket met a perfect balance on this project. Jerry restores early Corvettes for a living and decided at the beginning of the project that this one was to be different. He didn’t want to get too far away from what he knows well, but improvements were not out of bounds either. Everywhere you look there are modifications to make the car better for a driver. That’s exactly what Jerry wanted. The chassis, with its four coilover shocks, is much more adjustable for the type of driving you want to do, while the drivetrain was beefed up accordingly to help it survive behind that big-block. A Classic Chevy five-speed resides where the factory powerglide once held residence. If there was one modification that makes this or any early Corvette more drivable, it would have to be putting a five-speed in them. This one went in without a hitch and acts just like a four-speed. The car drives very similar. That is, until you go into fifth. Then, the RPM drops and the car settles into a smooth rhythm. At about 70 MPH, the engine is turning just over 1,800 RPM. That’s with a set of 3.70 gears in the rear. The clutch was 28 CORVETTE enthusiast updated with an aluminum flywheel, disc and pressure plate from RAM Clutches, but we went with a mechanical clutch assembly to operate it. Pedal pressure was not excessive, but it was very positive. I couldn’t help but notice that simply driving around town, I was shifting more aggressively than I typically do. Not jamming gears, more like rowing through the gears both upshifting and downshifting. The powerful 572 fivespeed and the sound from those side pipes, made owning a standard fun again! I found myself shifting just to hear the engine. Further back the drivetrain, the differential was substantially beefed up by Van Steel with a Tom’s Differentials’ 1340 Vette Axle Kit. We didn’t want any problems coming from the rear and Tom’s kits are proven performers. To keep the entire driveline bullet-proof, a set of carbon fiber driveshafts were fitted under the floorboards of King Ray. With the carbon fiber shaft’s increased diameter, it got a little tight right around the seat belt attachment bolts, but trimming the bolts provided enough clearance. When sitting inside King Ray, you can’t help but notice the white stinger out in front. It blends well with the white and black Al Knoch interior and white convertible top. The only part of the interior that Jerry’s Vette Service farmed out, was installing the seat covers on the original seats and the convertible top. We took the seats to the NCRS Kissimmee, Florida show, and Al Knoch’s technicians installed the seat covers right there at the show. They can install everything from convertible tops to complete interiors for enthusiasts. If you’re thinking of changing out your Corvette’s innards, consider this service from Al Knoch. It’s well worth it. The top was installed by Street Seats once the car was near completion. To compliment the white interior, stinger and convertible top, Jerry opted to have the gauges finished in the original font, but had Corvette Instruments put a white background as a base. The effect sets off the gauges, but doesn’t detract from the rest of the interior. They look great seated behind that factory teak steering wheel and they are very easy to read. King Ray was built to drive and cooling is always an issue with a big-block Corvette, especially in Florida heat. To cool the engine, there’s a DeWitt’s aluminum Direct-Fit radiator in front of a factory 7-blade fan from a 1969 big-block Corvette. Inside the cockpit, Classic Auto Air rebuilt the factory unit, setting it up for 134a, and installed a more efficient (and smaller) Sanden TOP LEFT: The interior is basically stock, including the factory A/C and teak wheel. BOTTOM LEFT: We did some kit-bashing for the 572 on the hood, combining 454 and 427 number kits. ABOVE RIGHT: The white gauges stand out in the black dash, but blend well with the white interior. In the Feb. ’06 issue, we started covering the buildup of King Ray, our ’67 project vehicle that Jerry picked up off of eBay. It started out as a 300 horse, powerglideequipped convertible. One thing he had, which was original, was factory air. Within a week, Jerry’s Vette Service split the body and frame, sending the chassis to Van Steel in Clearwater, Florida, and the fiberglass to J & M Enterprizes in Brooksville, Florida. Since then, they have been scuttling wrenches and parts to complete the project with their eyes set on Carlisle. We covered the car as it came back together over the past year and what you see on these pages is the result of some late nights, numerous phone calls and emails, and enough sweat to fill a small swimming pool. Even with everything that went into the project and obsessing over all the details for the past 11 months, when we asked if he would do it again, Jerry had only one answer, “Oh yeah!” For me, hearing that engine breathing heavily yet freely through those Stainless Works headers and 3-inch chambered side pipes, made it all worthwhile. Now it was time to prove that the focal point of all this noise and attention was actually a car and could be treated as such; it was time for a drive. I pushed the clutch in, found first gear and we were off. There’s no mistaking that the GM Performance Parts 572 crate engine is a performance engine. With 620 horsepower (the smaller of the two offered by GM) there’s plenty on tap when you want it. In fact, it would take a serious, die-hard, power-hungry enthusiast to even want the 720hp version in their Corvette. The little brother is quite capable and really puts the car right on the edge of everyday driving. It’s rowdy but not violent, and if you don’t mind getting noticed, it’s a great engine for the performance-minded, early Corvette owner. Think of it as an L88 on pump gas. It does get a little tight under the hood due to the higher deck height. Since we had a small-block car, we opted for a big-block style hood and even then, we needed to clearance a little for the A/C compressor and also, since we wanted the shielding on the ignition, we needed to trim the rear portion of the hood where it comes down in past the body line. I can remember the response I got when I called GM Performance Parts and told them we wanted to put a 572 into a ’67 Corvette. Their reply: “How do you intend on doing THAT!” After convincing them we were NOT crazy and had actually thought about how we were going to do it, the check was written and the shipping label applied. Interestingly, it wasn’t terribly complicated to make the engine fit. We obviously changed the intake to one of Coffman Corvette’s factory-style, 435hp tri-power setup with the help of spacer plates, and we also swapped out the oil pan with a Milodon unit for more clearance, since the 572 uses a truck-style pan and the sump was too low. In fact, the Milodon pan gave us a little more clearance than the factory 427 pan. Originally, the spacer plates for the intake were cut with flat upper and lower edges. This made the plates VERY obvious so Bill Harris machined the plates to match the intake, which made the plates virtually indistinguishable. If you didn’t know what you were looking at, you would probably never see them. We didn’t use power steering on King Ray, but we did use an alternator/power CORVETTE enthusiast 27 compressor. Combined, they keep the inside of King Ray cool, both engine and passengers. A major concern when going through an early Corvette is there are scores of pieces that, if not replaced or restored, will make the rest of the work look substandard. Early on, we partnered with Year One, Inc. and they supplied many of the pieces that make everything work together. Everything from dash bezels to fuel tanks/lines and even the necessary radiator core support came from Year One. They recently started focusing on Corvettes; with their emphasis on driving and enjoying collector cars (both metal and fiberglass), a partnership with them went without saying. One look at their phonebook-sized catalog for Corvettes, and you can see that while they have parts for a restoration, they consider “improvement parts” equally as important. They’ll be happy to know that King Ray has many miles of smiles in his future. King Ray was well on his way to starting those miles and I was lucky enough to be behind the wheel. At some point, I’d be tempted to turn on the factory radio, but for now, I was content to hear the roar of the engine, have the wind in my hair and row my way through the gears. Of course, we needed to have King Ray in our booth during Corvettes at Carlisle and that meant I’d have to take him back to Jerry’s so he could get loaded onto a trailer in preparation for his trip. We had hoped to have the car finished in time to do some shakedown runs and possibly drive him to Carlisle, but we decided it was better to have him at Carlisle than half-way to Carlisle with a problem. The weekend immediately following Carlisle, King Ray went out on his first show road trip and he operated flawlessly. The trip revealed that the 12-way adjustable shocks needed to be adjusted to tune in the ride to Jerry’s liking; other than that, it was smooth sailing. While at Carlisle, we had many CE readers stop by the booth to see King Ray. Many reported they were either planning or doing a similar project. Whether they have a small-block or big-block doesn’t matter, and even if they don’t adhere to the recipe we used to build King Ray, the main thing is they consider the build with the goal of driving the car and making it suitable for them. King Ray suits Jerry just fine and it makes a great replacement for the ’67 L89 that used to reside in his garage. The best part about having the car finished is that now he can enjoy it and isn’t that what it was all about from the beginning? ■ Back Issues Containing King Ray Coverage: King Ray Goes Under the Knife (Introduction)........................................................... Feb. 2006 Differential Treatment (Differential Buildup)..............................................................March 2006 Building a Foundation (Chassis Buildup)....................................................................April 2006 Body Building (Bodywork/Panel Replacement) ........................................................ June 2006 Making It Fit (572 and 5-Speed Trans).......................................................................Aug. 2006 Super-Cooling a Sting Ray (A/C Install)..................................................................... Oct. 2006 Skin and Bones (Convertible Top Install).................................................................... Nov. 2006 Special Thanks To: Al Knoch Interiors www.alknoch.com Jim Meyer Racing www.jimmeyerracing.com American Racing Wheels www.americanracing.com MSD Ignition www.msdignition.com Classic Auto Air www.classicautoair.com Milodon, Inc. www.milodon.com Classic Chevy 5-Speed www.classicchevy5speed.com Paragon Reproductions www.corvette-paragon.com Coffman Corvette www.coffmancorvette.com Ram Clutches www.ramclutches.com Corvette Instruments (561) 691-2905 Seatbelt Sity (908) 719-2354 DeWitt’s Radiators www.dewitts.com Sermersheim’s Fiberglass, Inc. (812) 424-4701 Dupont Performance Coatings (Paint Materials) Stainless Steel Brakes Corp. www.ssbrakes.com Eckler’s www.ecklers.com GM Performance Parts www.gmgoodwrench.com Goodyear Tires www.goodyear.com Stainless Works www.stainlessworks.net Steve Hackel (Wiper/Headlight Motors) (708) 687-4183 Street Seats www.streetseats.com Harris Performance Bill Harris (727) 734-3394 Sweet Thunder www.sweet-thunder.com Holley Performance www.holley.com Tom’s Differentials www.tomsdifferentials.com J&M Enterprizes www.jmenterprizesinc.com (352) 796-5264 Van Steel, Inc. www.vansteel.com Jerry’s Vette Service Jerry Clark, Owner Jack Sauns, Assembly Technician (352) 666-9966 Vette Brakes & Products www.vbandp.com Year One, Inc. www.yearone.com CORVETTE enthusiast 29