 The Sonoma GT rolled off the assembly line with a standard 4.3 Vortec V6 pushing 185hp matted to a 700R4. While this stock combo would be a good foundation for other custom builds, Syborg needed a bit more. After all, the same says it all… TWIN TURBO. Both engine and trans will start as bare components and filled with top name parts.
So…what will replace the tired Vortec V6? How about a Bowtie V6 topped off with a Pontiac heads and a sheet metal Hogan Intake. To add the punch a pair GTQ 32 turbos will help force air into that Hogan Intake. To get the power to the ground a Bowler prepped 4L80E will feed power to the Aluminum 9” rear differential. Why a V6? Simple…pull up next to Syborg TT and the next streetlight and you’ll get your answer. ENGINE SPECS 10185051 Cylinder Case Bowtie Block Bore 4.120 Crower Billet Crank 3.50 Stroke ATI Super Dampener 6 3/8 - Steel - Chevy SB/90* V-6 JE Forged Pistons & Rings 9:1 (( 4.120 )) Oliver Connecting Rod 6" Melon M55A Oil Pump Crane Camshaft ( see Attached Specs ) Cloyes Timing Chain Adj Cloyes 2 Piece Timing Chain Cover Cloyes Hex-Adjust Timing Chain Pontiac Heads 449 Heads Cometic Head Gaskets Comp Series Shaft Mount Rockers & Stand (.450 offset) Jessel Offset Lifters 1.6 Lift Hogan Sheet Metal Intake Wilson Throttle Body 75mm Injectors 86# NGK 5820 Spark Plugs ( Alum Heads ) SS Twin Turbo Headers Stainless T4 Inlet Flange 2.5" Stainless V Band Tube Flanges Two - Precion Turbo GT3255E, 51 Trim, 58 Tangenal Exhaust Housing RPM Crank Trigger MSD Distributor & Cap MSD 8mm Plug Wire MSD 6A Ignition Box MSD Blaster Coil |
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