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Chevrolet S-10 Truck—
Chapter 1 from the V-8 Conversion Manual:

INTRODUCTION



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Chapter 1 Contents:

Introduction ••• 1984 S-10 2WD Truck with 1989 305 TPI/700-R4 ••• Project ZZ3—Our Quickest Truck ••• 1984 S-10 Blazer with 1985 305 TPI/700-R4 •••

Baby Thunder, 1992 S-10 4X4 Truck with 1992 Corvette LT1 Engine ••• ZZ3 Update ••• Another Update ••• 1995 Camaro LT1/4L60-E into 1988 2wd S-10 Blazer •••

V8 Alternative for 1996–2000 Trucks with the 4.3 V6 ••• Measurements ••• Typical Conversion Costs ••• Time Requirements •••

 

BABY THUNDER, 1992 S-10 4X4 TRUCK WITH 1992 CORVETTE LT1 ENGINE (continued)

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Underneath "Baby Thunder", the truck is essentially a Syclone with an LT1 engine. The Syclone uses a full time 4-wheel-drive transfer case from the all-wheel-drive Astro Van or Oldsmobile Bravada. The Syclone, Typhoon and Oldsmobile Bravada also use a different torsion bar crossmember which hangs a bit lower than the standard 4X4 S-Truck torsion bar crossmember, and allows room for a 3 inch exhaust pipe. The transmission crossmember is also unique to the Syclone, Typhoon, and Oldsmobile Bravada. The front driveshaft is also different than a standard 4X4 S-10 in that it uses a constant velocity joint instead of a U-joint. The Syclone also uses a console mounted Corvette floor shifter with cable actuation, which makes the shifter hook-up easier.

2-1/4" headpipes join into a 3" catalytic converter from a 1994 full-size truck with the 454 V8. We recommend using 2" head pipes on the 4X4 V8 swap because of the tight clearance, but GM's Scott Leon is far more skilled and patient than your average muffler shop.

Notice the license plate, which says "MANUFACTURER" on the bottom. If it didn¬t say that, we would have tried to take credit for building the truck.

From the rear, the truck looks nearly stock, even with the 1993 Corvette tires and wheels. The tires are Goodyear GSC, 255/45ZR17 front, 285/40ZR17 rear. The rims are 8.5x17 front, 9.5x17 rear, and they bolted on with no adapters. The 4-wheel-drive S-10 trucks use different wheel offset than the 2-wheel-drive trucks, so these wheels will not bolt onto a 2-wheel-drive truck unless adapters are used.

The rear suspension was lowered slightly by removing a leaf spring. This also softened the ride slightly. The rear brake drums were replaced with aluminum drums from an IROC Camaro. These changes saved about 30 lbs.

The rear bumper is from an S-10 Blazer and the handle for the spare tire carrier was modified slightly for access to the spare tire. These details are what separates a complete factory type conversion from the novice. This also shows how making a simple change like replacing the bumper can be more work than expected.

The truck weighs 3456 lbs, with a weight distribution of 64/36, front/rear. A GMC Syclone, which is essentially the same vehicle, but with a turbocharged and intercooled 4.3 V6 engine rated at 280 horsepower has a published curb weight of 3526 lbs. The Syclone comes with a tonneau cover and special ground effects body parts which add a few pounds, but it is interesting to note that the Corvette LT1 engine with aluminum heads actually weighs about the same as a 4.3 V6 with a turbocharger and intercooler. The turbocharger and intercooler weigh at least 50 lbs.

This truck is a blast to drive. It is smooth, quiet, and very fast. It runs the 1/4 mile in 13.9 seconds at 98 mph. The all-wheel-drive transfer case makes it possible to do full throttle starts without wheel spin—even in the rain! The LT1 engine idles smoothly and pulls solidly right up to the redline (6000 rpm). Because of the traction, the full throttle 1-2 shift is quite harsh. For example, our ZZ3 powered truck spins the tires on full-throttle 1-2 upshifts, and with Baby Thunder, the four tires grab so hard that it feels like the rear suspension bottoms out during full throttle 1-2 shifts as your head bangs against the headrest during the shift. It's actually kind of fun!

 

Chapter 1 is continued on the next page.

Chapter 1 Contents:

Introduction ••• 1984 S-10 2WD Truck with 1989 305 TPI/700-R4 ••• Project ZZ3—Our Quickest Truck ••• 1984 S-10 Blazer with 1985 305 TPI/700-R4 •••

Baby Thunder, 1992 S-10 4X4 Truck with 1992 Corvette LT1 Engine ••• ZZ3 Update ••• Another Update ••• 1995 Camaro LT1/4L60-E into 1988 2wd S-10 Blazer •••

V8 Alternative for 1996–2000 Trucks with the 4.3 V6 ••• Measurements ••• Typical Conversion Costs ••• Time Requirements •••


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