6.0l lq4
March 18th, 2018, 01:13 PM
#1
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Join Date: May 2017
Location: California
Posts: 56
6.0l lq4
Hello olds heads. This upcoming Friday I'm pulling the trigger on a 6.0L LQ4 build from block to turn key.
This engine Ine is going to be going into my 73 Cutlass "S" optioned 442.
I know these engines have been used in earlier model cutlasses and there is modification/aftermarket parts needed for fitment. Which I'm prepared to do to make work.
Im having a hard time finding any 73's out there with these engines in them. My question is is this that much different of a logistical fitment issue then earlier model cutlasses? The last thing I want to do is pay for this build and for whatever reason find out it "can't work".
If anyone hasexperience or knowledge about this swap it would be greatly appreciated. I know that holley makes a retro aftermarket oil pan that will be needed. And I also know the wiring harness will have to be modified. Other than that I'm all ears. Thanks everyone
This engine Ine is going to be going into my 73 Cutlass "S" optioned 442.
I know these engines have been used in earlier model cutlasses and there is modification/aftermarket parts needed for fitment. Which I'm prepared to do to make work.
Im having a hard time finding any 73's out there with these engines in them. My question is is this that much different of a logistical fitment issue then earlier model cutlasses? The last thing I want to do is pay for this build and for whatever reason find out it "can't work".
If anyone hasexperience or knowledge about this swap it would be greatly appreciated. I know that holley makes a retro aftermarket oil pan that will be needed. And I also know the wiring harness will have to be modified. Other than that I'm all ears. Thanks everyone
March 19th, 2018, 09:39 AM
#2
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Join Date: Apr 2012
Location: Bradenton, FL
Posts: 1,467
The GMPP pan should work. It's half the cost and just hangs a little bit lower. Otherwise, logistically, it should fit in the same as the earlier models. Consider headers for these cars are typically model years 68-77 if that says anything about the front frame. Check out G3GM.com. There's a couple guys who have done this already in their 73-77 A bodies.
March 21st, 2018, 07:19 AM
#5
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Join Date: Dec 2011
Location: Omaha, NE
Posts: 204
i have to disagree about the GMPP pan, and doubly so if you ever plan to lower your car. The pan hangs below your engine crossmember making a fragile bit of aluminum your first point of impact if you should ever bottom out. I know the holley pan is pricey but the 302-2 or 302-3 are the only way i would go. Mounts shouldnt be a problem, and as far as exhaust fitment i would recommend searching ls1tech.com for anyone else running a '73-up A body to gain some knowledge from. Best of luck with the build you'll love the results.
March 21st, 2018, 11:48 AM
#6
i have to disagree about the GMPP pan, and doubly so if you ever plan to lower your car. The pan hangs below your engine crossmember making a fragile bit of aluminum your first point of impact if you should ever bottom out. I know the holley pan is pricey but the 302-2 or 302-3 are the only way i would go. Mounts shouldnt be a problem, and as far as exhaust fitment i would recommend searching ls1tech.com for anyone else running a '73-up A body to gain some knowledge from. Best of luck with the build you'll love the results.
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