ls1 in second gen help

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Mar 4, 2006 | 08:01 PM

sstz28

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Staging Lane

Joined: Jun 2003

Posts: 58

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From: San Jose,Ca

ls1 in second gen help

well we had a 5.3 but know we got an ls1 block. the question is fuel. we are going the external fuel pump route just cause its easier. can any of u guys tell me what pumps ur running n fuel pressure regulators. thanx

Mar 5, 2006 | 05:07 AM

sstz28

Thread Starter

Staging Lane

Joined: Jun 2003

Posts: 58

Likes: 0

From: San Jose,Ca

i need help

Mar 5, 2006 | 12:12 PM

Schitzo

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From: Minneapolis MN

aeromotive should have a pump you can use.....just look for a pump that can provide enuf pressure for the engine....I think 60psi+ should be ok.
You can use a corvette fuel regulator

what fuel system do you have for 5.3 anyway.....why wouldn't that work?

Mar 5, 2006 | 01:23 PM

Stu Cool

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From: Olivehurst, CA

The FAQ and search engine are your friends, this has been discussed a lot:

External Fuel Pump
https://ls1tech.com/forums/search.php?searchid=2854228

Fuel Pump
https://ls1tech.com/forums/search.php?searchid=2853980

Fuel Pressure regulator
https://ls1tech.com/forums/search.php?searchid=2854238

Hope that helps

Pat

Mar 5, 2006 | 01:43 PM

Lesrace82

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From: Byron, IL

I have had bad luck with the aeromotive inline pumps. had the EFi pump and it ate itself in about a 1000 miles. Now I run the Bosch 420L inline pump with no problems.