jmr302

A friend and I are thinking about installing a spare L98 of mine into a carbureted pickup truck of his. The block obviously has provisions for a mechanical fuel pump but is there a fuel pump lobe on the stock roller cam? Your answer could save me a gasket. Thanks in advance!

IROCZ28KevinZ

iTrader: (2)

As far as I know, there is no fuel pump lobe on the cam. Also, as far as I know, there isn't a mechanical fuel pump that can supply the pressure needed for the TPI to function. You need like 50 PSI or something of pressure; that carb probably only had like 5 or 10 psi. You need to install an electric in-tank pump. Or, maybe someone makes an electric in-line pump? But, either way, just leave the blockoff plate alone.

Kev

jmr302

I forgot to mention that we'd be running a carb on this engine. I'm keeping the EFI for another project.

IROCZ28KevinZ

iTrader: (2)

oh ok..well, in that case you'd hafta change the cam and get the rod that drives the fuel pump. the cam would hafta have the extra lobe to drive the pump.

kev

Damon

I have an original L-98 roller cam in my basement right now. Out of 1987 vintage motor. It's got the fuel pump eccentric.

thirdgen88

The 1989 L05 roller motor I got as a core back in 2000 had a factory cam with the fuel pump eccentric.

87350IROC

iTrader: (2)

yes they have a lobe for the fuel pump

jmr302

Thanks for the replies. Looks like it's 3 to 1. I'll pull the plate tonight and see what's there.