Porch

I've searched and searched, but i can't find an answer!

My LS1's water pump is headed out. The engine is swapped into a Porsche 944 and i'd rather have the space on the front of the engine that a later pump like the LS2 and LS3 have. I picked up a new pump off ebay that claimed "LS1/LS2/..." but it is actually an LS3/LS7 pump ('09-11).

It looks like everything is mostly the same and from my research i know it will bolt up, but i haven't actually been able to find anyone who says "i put an ls3 water pump on my ls1 with f-body accessories and here's what i did".

From my measurements it looks like it just needs a 3/4" spacer, but that's another $80, so i thought i'd check here first. The other option is to just return the pump and spend another $80 on an LS2 pump, but apparently the LS3 had some improvements so it seems like it might be worth making it work...

Thanks for any help anyone can offer!

lizeec

iTrader: (57)

Scoggin dickey has new take off ls2 pumps for $110 shipped

JakeFusion

iTrader: (7)

That's where I got mine. Just pick up the new style WP gaskets with it (those aren't included).

Porch

Damn, wish i had known that before! I paid $150 for this LS3 pump. :/

The LS2 pump also requires spacers, but only about 1/4", is that correct? Or moving the pulley out a bit...

grim_ls1

What improvements were exactly made on the ls3 pump.

Scoggin Dickey

iTrader: (34)

Our pump won't require any spacers, it works with f-body accessories.

Porch

Re: LS3 pump: Eh, the usual...nothing the butt dyno would notice, but apparently it has lower rotating mass, it's a few pounds lighter, and some think it has an improvement in cooling flow.

Porch

Ah, that settles it... giving you a call.

JakeFusion

iTrader: (7)

Scoggin Dickey has take off LS2 pumps from the GTO. GTO uses the same serpentine acc belt as the F-Body.

pecosbull

Would you mind posting a link or part number? I was not able to find the water pump on sdparts.com. I'm searching by year/make/model for a 2000 Pontiac Firebird. I was not able to specify that it is a Firebird Formula, and there is no option for a Trans Am. I also tried using a 2000 Chevrolet Camaro.

http://sdparts.com/c-1029509-cooling...C||year%3D2000

The search returns only one electric water pump (Item #: MRG4333). I considered buying that pump but it doesn't appear to fit F bodies?

Scoggin Dickey

iTrader: (34)

https://sdparts.com/i-20058398-gm-fa...mp-kitwat.html

https://sdparts.com/i-19935381-gm-12...mp-gasket.html