This is the Kwik adapter system kit with seven flat aluminum brackets and all the fasteners you'll need to bolt the system to the engine. These pieces adapt the small-block brackets to the block and accessory boltholes in the big-block heads. This is the Kwik adapter system kit with seven flat aluminum brackets and all the fastener Big-Block Serpentine As good as the small-block system is, we ran across a cool conversion kit that applies these same pieces for a big-block. We introduced you to Kwik Performance with our LS-series engine accessory drive story back in the May '09 issue ("LS Accessory Drive Swap Guide"). The Kwik folks also identified a need for an inexpensive big-block serpentine accessory drive and discovered that with seven simple aluminum brackets, it's possible to adapt the small-block serpentine beltdrive system to a big-block Chevy with kits for standard-deck and tall-deck Rat motors. It's really that simple. For the record, GM did build a big-block serpentine beltdrive system starting in the early '90s through model year 2000 in 3/4 and 1-ton trucks, Suburbans, and other large vehicles. It is possible to find this system, but you're more likely to find it in a truck-only boneyard-and you'll pay more for the privilege. GM Performance Parts also sells a complete serpentine beltdrive system for either standard- or tall-deck Rats with or without A/C. All the previous parts we detailed for the small-block are used on the big-block with the exception of the water pump. In fact, Chevrolet interchangeability is so good that even the small-block serpentine water pump pulley can be used on the big-block. Kwik's brackets easily adapt the small-block system to the Rat, and the only other critical components you need are a big-block serpentine crank pulley and a different belt. We also found a cool aluminum crank pulley from March Pulleys that is only a few dollars more than the factory steel piece. In addition to the small-block parts necessary, we picked up a big-block water pump from Rock Auto and a big-block serpentine crank pulley from our pals at Burt Chevrolet. The Kwik brackets bolt to the front of the big-block as shown. In addition to the small-block parts necessary, we picked up a big-block water pump from R Here's the entire big-block system installed on a 396 big-block. We chose to retain the A/C-delete pulley, but this could just as easily be dressed with an early '90s truck A/C compressor. This conversion will also probably require an aftermarket swivel thermostat housing. Here's the entire big-block system installed on a 396 big-block. We chose to retain the A/ Small-Block Accessory Drive Description PN Source Price Used factory mounts and pulleys Used Junkyard $40.00 Alternator, BBB Precision N78617 Rock Auto $76.99 Power steering pump, A-1 Cardone 207840 Rock Auto $46.89, plus core Water pump, Gates 43114 Rock Auto $25.79 Belt tensioner, Gates 38108 Rock Auto $35.79 Tensioner pulley, Gates* 38001 Rock Auto $16.82 Idler, Gates 38006 Rock Auto $12.69 Belt, Gates K060956 Rock Auto $21.79 A/C-delete pulley, Dorman 34152 Rock Auto $27.79 GMPP A/C accessory drive, SBC 12497698 Scoggin-Dickey $808.80 GMPP non-A/C accessory drive, SBC 12497697 Scoggin-Dickey $550.00 GMPP accessory drive brackets, SBC 12497869 Scoggin-Dickey $325.00 *This is used to replace the tensioner pulley, so there is no need to purchase a new tensioner. Big-Block Accessory Drive GM 454 crank pulley 10085753 Burt Chevrolet $73.59 Used factory mounts and pulleys Used Junkyard $40.00 Kwik adapter plate kit, std deck K10004 Kwik Performance $129.00 Kwik adapter plate kit, tall deck K10014 Kwik Performance $129.00 ACDelco 454 water pump 252722 Rock Auto $36.79 Belt, Gates K060970 Rock Auto $26.79 GMPP A/C accessory drive, BBC 19172805 Scoggin-Dickey $770.00 GMPP non-A/C accessory drive, BBC 19172806 Scoggin-Dickey $642.00 March aluminum 454 crank 4351 Summit Racing $79.88 SOURCES Kwik Performance Springfield MO 417-955-1467 www.kwikperf.com Scoggin-Dickey Parts Center 5901 Spur 327 Lubbock TX 79424 800-456-0211 http://www.sdparts.com Rock Auto 6680 Odana Road Madison WI 53719 866-762-5288 http://www.rockauto.com March Performance 16160 Performance Way Naples FL 34110 239-593-4074 http://www.MarchPerf.com Chevrolet Performance Parts P.O. Box 33170 Detroit MI 48232 800-577-6888 http://www.gmperformanceparts.com « | 1 | 2 | 3 | View Full Article By Jeff Smith Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!