For the application search, it fits.
Totally fits, same thing but .......the stock water pump has
two tubes and this pump doesn not have those provisions neither
the tubes, i would love to have a high volume/flow pump since
they really make a difference (i have an Edelbrock pump on my 87 L98 Vette
and works wonderful)
The Vortec water pump has some tubes like this
Can i use my new Summit Pump or am i forced to reuse
my stock one? It's working great, but i wanted to try a new one
and high volume.
Deleting the heater will not cause any problems for the pump.
It seems to me that one of those hoses should be a by-pass hose (it would be in a Ford) and if that's the case you may want to drill a small by-pass hole in your thermostat.
In my experience a high flow pump on most builds equals too much pressure and problems. I cant count how many times I've seen them blow thermostat seals out.
mmmm i can still use the stock one, it's good.
i was looking for more cooling just in case.-
On my Corvette the 8825 High volume Edelbrock pump´
has worked amazing after all these years.
Those tubes do not only supply the heater.1 is the external thermostat bypass.Vortec heads do not have an internal bypass that previous heads had.Some blocks are also not open all the way to the deck.
What intake are you using? You can as suggested above drill holes in the thermostat flange. Usually 4 1/8" holes works well.This bypass is only functional until the thermostat opens & provides cooling to the heads until then.After the thermostat opens, it doesn't really matter.
Since those heads are direct replacements for L31 heads,I am assuming they also don't have the internal bypass.I've never used aftermarket heads with the stock intake,but,from my thinking,I don't see where there would be a problem with drilling the thermostat.Honestly tho,if it were me,I would use a stock pump,unless your use is gonna dictate a high volume pump.I just can't see the need for it in most cases.
To tell you the truth, nah, it was just to install some new pump.
I might sell it and buy the correct one if the stock fails down the road.
Case closed.
Thanks.
ps : i need to figure out what intake / EFI system we'll slap in there
in a few months, maybe we are going with a complete selftuning system.
The FI Tech systems seem to be doing well in most cases.It's a TBI setup,but,still seem to be a good option,especially considering the price.
I like GM's Ramjet system the best.You could put 1 of these together for just over $1000 if using your current controller.
The FI Tech systems seem to be doing well in most cases.It's a TBI setup,but,still seem to be a good option,especially considering the price.
I like GM's Ramjet system the best.You could put 1 of these together for just over $1000 if using your current controller.
yep i feel like the stock intake will leave power on the table.
Selftuning units are what im thinking so i have to forget about all the tuning and reprogram
the computer, i know it will be more expensive but might worth the $$$
I haven't studied much in deep this area but i know we'll have to make some changes to run properly.
From what i've read we would do good with jumping into the 411. But ...we are definetely planning to upgrade intake. We don't have much time to adapt and modify all the wiring hassle so im not sure if
for now we can
1 - Buy a new blackbox retuned for our current components (As far as i know 1996 black box cannot be reprogrammed or record something into it like i do with my 165 Corvette ECM were i can burn chips, right?) Who's selling this retuned blackboxes and how much $$$? That would be the fastest solution for now while we have this Heads/Cam/Stock intake w/ upgrade spider and we can drive decent for now.
2 Down the road buy the full EFI Intake/injectors w/computer selftuning bundle in just one pack
maybe Edelbrock or FAST? Not sure what's the best but we have time for this, maybe 6 months, a year or so...we have been doing things step by step (we work every saturday on the truck only).
And that way we'll see some power and correct drivability.
The tunes for the black box have to be flashed.No chips.The 96/97 black boxes don't have alot of support, but, you can contact Brian Mc Werter at PCM for Less.He can either tune yours & return it, or, he can send you a tuned PCM for a deposit.When you send your PCM, to him, the deposit is returned.Cost will be approx $250, IIRC.
Bryan has developed some decent L31 Vortec 350 tunes on his chassis dyno. A guy I know took his extended cab 2wd truck with Thorley TRI-Y headers, stock intake and CSFI, with the 208º/221º 0.474"/0.510" on a 112º LSA and dyno'd
He now runs a Yank 3600 converter, I don't think these passes had that TC installed though.
14.30 @ 92.2 on motor
13.47 @ 99.2 w/ a 50 dry shot
You can lay a headgasket on the head to see if it does or not.On the passenger side towards the front, if you have a hole in the gasket without a corresponding hole in the head, then there is no bypass.The block may, or, may not be opened up all the way to the decks.I've seen them both ways.Since some of these blocks were used on 95 TBI motors, I would think the earlier castings were open & later blocks not so much.
All the gasket holes matched perfectly to the head & block
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