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83GMCK2500 · 03-01-2018, 04:02 PM

Second the Five-O-Motorsports ones. Do NOT buy ebay injectors if you plan on keeping the truck for any length of time, they are garbage, been there done that. Also avoid the "OEM replacement" injectors, the fat body original style injector (rochester design) is just trash. The Bosch-style injector is a much better design and has a much lower failure rate. You can *sometimes* get away with dropping LT1 injectors (Bosch style) into a Vortec 454 without setting any codes, they are 24lb/hr vs 19lb/hr (454) of fuel delivery.

Best stock size currently available:
https://www.fiveomotorsport.com/bosc...24-blue-knight

03-01-2018, 04:02 PM	#4
83GMCK2500 Registered User Join Date: Sep 2009 Location: Beaverton, OR from WA State Posts: 1,515	Re: vortec 454 injectors Second the Five-O-Motorsports ones. Do NOT buy ebay injectors if you plan on keeping the truck for any length of time, they are garbage, been there done that. Also avoid the "OEM replacement" injectors, the fat body original style injector (rochester design) is just trash. The Bosch-style injector is a much better design and has a much lower failure rate. You can sometimes get away with dropping LT1 injectors (Bosch style) into a Vortec 454 without setting any codes, they are 24lb/hr vs 19lb/hr (454) of fuel delivery. Best stock size currently available: https://www.fiveomotorsport.com/bosc...24-blue-knight __________________ Devin 1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt 1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050 1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350 My Introduction with my '83s History New Daily, the '96