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**Advanced Design** · 09-13-2015, 11:02 AM

I love the LS engines in my 56 and 72 Burb, so I am putting one in my 48 Suburban build. While going back with the 400 is probably the cheapest, the LS will provide better all around performance and reliability.

You mentioned LT1 and LS1. Curious which one it is?

09-13-2015, 11:02 AM	#6
Advanced Design Senior Member Join Date: Jul 2012 Location: Oblong, Illinois Posts: 7,028	Re: 400 sbc again or LS1 swap...what to do I love the LS engines in my 56 and 72 Burb, so I am putting one in my 48 Suburban build. While going back with the 400 is probably the cheapest, the LS will provide better all around performance and reliability. You mentioned LT1 and LS1. Curious which one it is? __________________ Doug Advanced Design’s 1977 Blazer Build Advanced Design's '48 'Burb Build Mrs Advanced Design's '72 Suburban Advanced Design's 56 BelAir LS swap