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LS1 Front accessories mounting to LS3 questions

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Old Jan 3, 2025 | 01:44 PM
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How about mocking it up WITH the Gaskets and seeing what happens.

Didn't think I had to state that but clearly I had to.

Probably why no one else on the planet has ever had that problem but you.

I ran all my LS1 Fbody Accessories on the front of a LSX Engine that uses the same Timing Cover with the front Cam Sensor, so I know that combination works first hand.

Last edited by the_merv; Jan 3, 2025 at 03:59 PM.
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Old Jan 3, 2025 | 02:56 PM
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See post #12.

They're 8mm "standard" (not fine) thread, 1.25mm I think
Don't know the length right offhand; no doubt you can measure that since they're in your hand now. You could even [gasp!] match up the threads to something at the store.
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Old Jan 3, 2025 | 03:15 PM
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At least at Ace Hardware near the bolt selection racks they have a panel? with inserts for both metric and SAE that you can screw a bolt into to confirm its size and pitch.
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Old Jan 3, 2025 | 03:27 PM
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Come on guys, you're trying to explain that **** to somebody who thinks the bolts are the problem.

The problem on something there are billions of out there working fine.

People.
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Old Jan 3, 2025 | 11:27 PM
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Originally Posted by the_merv
How about mocking it up WITH the Gaskets and seeing what happens.

Didn't think I had to state that but clearly I had to.

Probably why no one else on the planet has ever had that problem but you.

I ran all my LS1 Fbody Accessories on the front of a LSX Engine that uses the same Timing Cover with the front Cam Sensor, so I know that combination works first hand.
well like i stated it was a huge gap and making contact. there was a 1/4 inch gap. The gaskets are no where near that thick. That wasnt the problem. It was the bolts on the back of the pump. Yes my version of the water pump was the factor. Others posted different versions/brand pumps that had different bolts. I know you really want to push your point of mocking up without the gaskets but, it was a different issue. Its obvious there will still be a gap without gaskets but not 1/4 inch
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Old Jan 3, 2025 | 11:38 PM
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Originally Posted by the_merv
Come on guys, you're trying to explain that **** to somebody who thinks the bolts are the problem.

The problem on something there are billions of out there working fine.

People.
well since you seem so inclined to prove your point rather than be helpful and claim that i think the issue is the bolts and its useless to explain to me. Maybe you just have your panties in a bunch. The bolts were making contact not allowing the pump to seat even with gaskets. Theres then indentation THE BOLTS were making with the cover. Im sorry you were so inconvenienced to keep replying to my post stating you never had issues



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Old Jan 4, 2025 | 12:09 AM
  #27  
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I also mocked up with the gaskets and the same original bolts just to disprove mervs claims of the bolts not being the issues and it was the gaskets not being used. Still the same issue. Just didnt snag a picture of it.

Even went the extra mile to get a new ac delco pump, and boom what do ya know different design on the back that doesnt use any bolts. Even went further to see the other remanufactured pumps they had which were a different design on the back just like mine. The ac delco seated perfectly and fixed the problem. Didnt snag a picture before i left my buddies house but this is the one i bought below



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Old Jan 4, 2025 | 07:27 AM
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All those pictures and not one with any Gaskets.

Sure you did.
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Old Jan 4, 2025 | 09:29 AM
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Originally Posted by the_merv
All those pictures and not one with any Gaskets.

Sure you did.
those pictures are 2 days old. Tell me what water pump gaskets are 1/4 inch thick ? You need to get laid bud. Your hand doesnt count
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Old Jan 4, 2025 | 10:17 AM
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Originally Posted by Dilan
those pictures are 2 days old. Tell me what water pump gaskets are 1/4 inch thick ?
Hardly the gap you have.

You came in here with a super basic question that you could have found the answer to in 30 seconds on Google.
So yea, I'm in doubt of your ability here when you have problems with your "mock up" that has missing parts each time.

End of the day, not my car not my problem. I'm driving mine.
Originally Posted by Dilan
You need to get laid bud. Your hand doesnt count
Left your mom's house this morning.

Your allowance money is on the nightstand.
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Old Jan 4, 2025 | 12:27 PM
  #31  
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Originally Posted by the_merv
Hardly the gap you have.

You came in here with a super basic question that you could have found the answer to in 30 seconds on Google.
So yea, I'm in doubt of your ability here when you have problems with your "mock up" that has missing parts each time.

End of the day, not my car not my problem. I'm driving mine.

Left your mom's house this morning.

Your allowance money is on the nightstand.
yup dont always have the time to document everything and report to your boyfriends on a forum. Google searches have mixed answers. I actually have a life outside of forums with a wife. I own my house and two properties here in vegas bud. Also isnt my first rodeo. I build all my cars and done numerous motor swaps. Just havent tried interchanging parts on the LS platform until now. Luckily have friends that allow me to store things at their house as my garage is full. Maybe a problem you wish you had but hey its your world im just living in it bud. Sorry youre making this about you and now your only argument is trying to prove im wrong. Which you were wrong. Nice try though g@y boy. Mad you gave to report to work everyday while Im a full time day trader that doesnt need mommys money or report to anyone for money. Boohoo im so sad





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Old Jan 4, 2025 | 03:42 PM
  #32  
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Just had a thought and I know that's pretty crazy for me but I have two spare new LS1 2002 Camaro water pumps on my parts rack. Both have bolt on rear water pump covers. One I test fit on a current LS3 project and yes the water pump bolts hit the front of the LS3 VVT delete timing cover. The water pumps came from NAPA 3-5 years ago. So it maybe was a bit a bubba but all I did on the LS1 water pump bolt heads was grind the bolt heads down a bit for clearance. Plenty of the head left if you wanted get them out but I don't have any idea why you would.
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Old Jan 4, 2025 | 07:34 PM
  #33  
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Originally Posted by Dilan
yup dont always have the time to document everything and report to your boyfriends on a forum. Google searches have mixed answers. I actually have a life outside of forums with a wife. I own my house and two properties here in vegas bud. Also isnt my first rodeo. I build all my cars and done numerous motor swaps. Just havent tried interchanging parts on the LS platform until now. Luckily have friends that allow me to store things at their house as my garage is full. Maybe a problem you wish you had but hey its your world im just living in it bud. Sorry youre making this about you and now your only argument is trying to prove im wrong. Which you were wrong. Nice try though g@y boy. Mad you gave to report to work everyday while Im a full time day trader that doesnt need mommys money or report to anyone for money. Boohoo im so sad
I'd be sad too when you have 1/3 the garage most people do. Seems like you been failing at day trading. You work more than me, trust me.

From my experience in life, those like you who brag about what little you have, aren't much in life. Step your **** up, son. Way to insult anyone here to tried to help your lack of knowledge. Whole lot of talk for someone who can't build the basics.

No one cares. Go attempt to build your junk.

Last edited by the_merv; Jan 5, 2025 at 11:44 AM.
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Old Jan 4, 2025 | 07:41 PM
  #34  
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I had the same issue some years back with a off brand pump using bolt on rear cover. I ground the bolt heads down a good 1/16 or more. Just enough for them not to contact. My new delco brand has a press fit cover. So no contact, but it sure is close. Thats a stock LS3 with f-body water pump/accessories/balancer. Also my steam line is close to the underside of the TB, but no contact either.

Last edited by 84/89; Jan 4, 2025 at 08:02 PM.
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Old Jan 4, 2025 | 08:31 PM
  #35  
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Originally Posted by 84/89
Also my steam line is close to the underside of the TB, but no contact either.
Looks like that is where someone tapped into the top of the Water Pump instead of going to the Radiator. Some people do that.

Last edited by the_merv; Jan 4, 2025 at 08:59 PM.
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Old Jan 4, 2025 | 08:41 PM
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Yes, i did that on my first water pump too. Seems a higher point than the radiator to me, though only slightly higher.
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Old Jan 5, 2025 | 03:49 PM
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My LS6 swapped 98 Wrangler I tapped the water pump for the steam line. Been 15 years with zero issues. But if the pump fails I'd have drill and tap a new pump. It hasn't failed but it would be on the Power Tour a 1000 miles from home. I have a new pump already drilled and tapped I take with me on road trips.
But here's a pic of 80 Camaro LS3 project. Steam line to the radiator. No mods to the pump if it fails. I think that is a better solution.
Wrangler tapped into the water pump.
Pics.


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Old Jan 5, 2025 | 05:27 PM
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I've seen where people go into the top spot like above, interesting placement there on the side.
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Old Jan 5, 2025 | 05:52 PM
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In the bottom pic, does the other end go to the steam pipe coming off the heads?

I wanted to use a schrader valve on mine in place of the braided hose to release any trapped air, but not the tire valve type. A more heavy duty version.
Anyone ever done that or is that a wacked idea?
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Old Jan 5, 2025 | 06:49 PM
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Yea his line loops to the Steam Line, it's out of the picture up on the top there but you can tell.

If you've ever worked on the Gen II LT1's, part of bleeding them was a screw valve.

However in the case of the LS I highly doubt you'd get trapped air there, as soon as that Water Pump turns there's enough turbulence and moving water to move everything in that little line, expecially when the coolant in the Heads is moving through that Steam Line.
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