ls1 m6 swap..

81elcamaro

Daily Driver
Jun 7, 2010
30
0
0
i am currently wanting to install a ls1 in my 81 elcamino, i am running it efi and i was wanting to know what gas tank and sending unit i would need? return or returnless? and from what year gas tank would fit my 81?
 

StreetBu

MalibuRacing Junkie
Mar 21, 2004
4,158
3
38
Upstate NY
You'd need a stock El-Camino FI gas tank. They only came in the later year elco's 84- newer I think, with a 4.3L V6 TBI motor. You also need the sending unit assembly from the same. BUT you'll have to change the pump itself out to a higher pressure and volume one. Thats if you want to stay in tank, if you want to go external, there are dozens of choices. For the intank you run a Corvette Fuel filter/pressure regulator assembly, pretty cheap, I think around $55 or so. Ck out the LSX swap forum on here for more info and idea's. HTH
 

81elcamaro

Daily Driver
Thread starter
Jun 7, 2010
30
0
0
thanks! i will be searching for one asap.
 

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