I was looking around on ebay for some 8.1 injectors and I ran across these. The guy is asking ~$25 each I think they are the 8.1 marine injectors but I wanted to make sure... So roughly $200 for a full set seems pretty good... Are these a direct swap, if not what is needed...

http://cgi.ebay.com/ebaymotors/Injec...spagenameZWD1V

 

I think those are the 8.1 truck injectors and not the 8.1 marine ones. The part number is not the same as the marine units.

8.1 Marine Injectors
Part Number 17113739 (OE Part # 25176061)
Direct fit for short G.M. LS1 SUV injectors
Static flow @ 37.95lb/hr @ 43.5PSI / 300KPa (4.31 g/s = 398cc/min)
Static flow @ 43.82lb/hr @ 58PSI / 400KPa (4.97 g/s = 460cc/min) *
Dynamic flow (2.0ms/10.0 ms(pulse width / rep rate)) 6.0 lb/hr @ 43.5PSI (0.748 g/s @ 300KPa)
Coil Resistance: High Impedance / High-Z (No ECM driver modifications required)


But they are still bigger than the stock ones you have and are drop in.

 

BTW, BlownChevy had some of the 8.1 Marine injectors for sale like a week or two ago so send him a pm.

 

those injectors do appear to be the regular 8.1s.


word. i've bought two sets from him and he had more than that. i'd PM him.