05Tahoez

Thinking of putting stock Gen 4 5.3 in late 80s Blazer. I know I'm going to have to change out the fuel pump and likely add an external regulator.

I'm hoping to retain the stock tank, fuel sending unit, and fuel lines, though. Probably going to have to get creative with fuel line adapters with the stock saginaw ends.

Any suggestions for a fuel pump? Probably something from a mid 90s chevy pickup? Should require 50 to 60 psi, I think.

Atomic

iTrader: (42)

How much power do you want to make? A walbro 255 is the go to basic pump. If you want more than 500 I would do a walbro400.

05Tahoez

Probably not much more than 350hp for now (mostly stock). The 255 would probably be fine. It's got a different plug so I'll have to solder if I use it. I've read that they are pretty loud and sometimes struggle to suck up fuel when tanks are half full. Thanks for the suggestion, though.

SUTTERERMAN85

iTrader: (40)

I think earls or someone in jegs makes adapters to AN fittings. I used them on my 91 TBI motor to LS1 swap.