1970-1972 Monte Carlo LS Hose and Line Kits

Line kits for an LS in a 1970-1972 Monte Carlo. Match the braided fuel kit to the pump in your BRP Monte Carlo EFI tank, choose cooler lines by automatic, and finish with the steering hose from the LS pump to the box.

4L60E to 4L80E fit the stock tunnel
Fuel kits for 255 or 400 LPH pumps
Braided cooler and steering lines

The 1970 and 1971-1972 tanks, standard or notched for exhaust and tire clearance, are on the 1970-1972 Monte Carlo LS page. Tunnel notes come from the 1970-1972 Monte Carlo LS install guide.

$399.00 Fuel Line and Regulator Kit - 255 LPH

$795.00 Fuel Line and Regulator Kit - 400 LPH

$265.00 Transmission Cooler Line kit - 4L60E

$285.00 Transmission Cooler Line Kit - 4L80E

$299.00 Transmission Cooler Line Kit - 6L80E-10L90E

1970-1972 Monte Carlo LS line kits

Monte Carlo fuel line and regulator kits

Cooler line kits for the automatic

Power steering hose kit

Power Steering Hose Kit

Related Monte Carlo pages

What comes in the Monte Carlo line kits

Fuel hose is PTFE lined with a stainless braid and a black jacket that protects wiring and paint.
With 6601-00, fuel pressure is set at 58 psi by a single OE style filter and regulator.
With 6605-00, an adjustable regulator with a boost reference port is paired with a separate fuel filter.
The steering kit uses a braided supply line and a nylon return line.

1970-1972 Monte Carlo line fitment notes

Monte Carlo tanks come with a 255 LPH or 400 LPH Walbro pump. 6601-00 matches the 255, 6605-00 matches the 400.
The guide says the 4L60E, 4L65E, 4L70E, 4L75E and 4L80E fit the factory tunnel, so those cooler kits go on with no floor work.
A 6L80E, 6L90E or 8L90E needs the tunnel cut and opened before the transmission and its cooler kit go in.
To clear the frame, the guide requires high mount A/C and alternator brackets.

Notes from the 1970-1972 Monte Carlo LS install guide. Tank pump sizes and kit contents are from BRP product listings.

1970-1972 Monte Carlo LS hose and line FAQ

Which fuel line kit fits a 1970 Monte Carlo EFI tank?

Go by its pump: 6601-00 for the 255 LPH tank, 6605-00 for the 400 LPH tank. That holds for the notched tanks too.

Will a 4L80E and its cooler kit fit a 1971 Monte Carlo?

Yes. The guide lists the 4L80E as fitting the factory tunnel, and the 4L80E cooler kit also covers the 4L85E.

What about cooler lines for a 6L80E in a Monte Carlo?

Use the 6L80E-10L90E kit with its billet manifold, after the tunnel work the guide describes for that transmission.

Does BRP have a return style fuel kit for an early LS in a Monte Carlo?

Not at the moment. Both active fuel line kits are built for returnless rails.