I'm a little familiar with the LS engines, I had a stock 99 ta, and I daily a 2010 SS with the L99. Sadly with long tubes and a tune it's at 378 hp and 401 tq right around 4k rpms. I bought the regal for a grand so this way I can do what I want with an LS engine and not worry about daily drivability etc. Do anybody yall have any links to the companies with the right mounts, cross members etc?
5.3 or 6.0 in an 80 Regal
- Thread starter 80Abody
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I would get the big items, the engine, trans, and probably rear, before you started buying components for the swap. The motor mounts work for all the LS', but the crossmembers differ depending on what trans you use. I changed my mind during the course of my build on the trans and had to sell a brand new crossmember. Depending on which engine you buy most have cathedral port heads but some like mine have rectangular ports and you need a different intake. I also bought boxed rear control arms then sold them because I thought I was going to put an 8.8 rear in, which needs different uca's. But I ended up not even going that route and had to buy another set when I got my new rear.
Thanks, it looks like the trans crossmember will work since it has every trans I've had in mind listed. I'm still up in the air on whether or not to go with a 9" or 12 bolt from a 70 chevelle since it's a direct fit from what I've been told. Just found out a coworker has done a few g bodies and it seems like my goal of a 10 sec or faster car is easily obtainable with this car.
You have to buy an extension also with that crossmember depending on which trans you buy. Most of them don't have the mounts in the same spot. I originally bought a G-force crossmember for a th400/200r4, but sold it because I am going with a 4L80e which is longer, and I bought an Iceman crossmember to fit it.
As far as the 12 bolt from a Chevelle fitting in an G-body, you need special uppers just like with the Ford 8.8.
Are LS engines more susceptible to loss of low end power when going with a bigger cam than doing the same in the older small blocks? I've never driven anything with an LS engine in it so my comment was just based on what I had read, not personal experience.
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The answer lies in the port velocity. Although I don't have the numbers It's likely that an older cathedral port head from an LS engine would have larger port / runner volume than an old school small block and be more susceptible. A stock 5.3 LS from a truck flows around 219 on the intake side where many old small block Chevy heads in stock form struggle to hit 200 cfm. The newer rectangular port heads found on LS3 / L92 and newer variants have huge ports with impressive flow numbers for best max effort horsepower but as mentioned earlier have a lower port velocity and suffer down low when big cams are swapped. Spend some time on LS1tech.com.....Lot's of good info there...The subject has been beat up many times.
80Abody,
A great place to start would to be checking out Joe Hinds book - GM G-body Performance Upgrades 1978-1988.
I also have been swapping a 6.0L in a 82 Regal, helped with a 4.8 in a Elky, and a Mast 440 in the LSX ELCamino, all of which used the BRP motor mounts... we have used other parts for trans crossmembers, oil pans, and headers... so you have options.... Just research what people say works and do your homework before you buy any parts. Good luck and don't give up!!!!!!!
Best Regards
Matt
www.HotRodRegal.com
A great place to start would to be checking out Joe Hinds book - GM G-body Performance Upgrades 1978-1988.
I also have been swapping a 6.0L in a 82 Regal, helped with a 4.8 in a Elky, and a Mast 440 in the LSX ELCamino, all of which used the BRP motor mounts... we have used other parts for trans crossmembers, oil pans, and headers... so you have options.... Just research what people say works and do your homework before you buy any parts. Good luck and don't give up!!!!!!!
Best Regards
Matt
www.HotRodRegal.com
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