First lm7 swap into 1970 firebird
06-05-2019, 08:30 PM
#1
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First lm7 swap into 1970 firebird I got a lot of questions but I'll only ask a few now.
The plan for the build is stock pistons and rods, new rockers and rollers. New intake, sloppy stage 2 cam, single turbo, t56 trans. We are shooting for 500whp. My question is what turbo, headers and intercooler will fit and work in the firebird. With minimal to no fabrication. Also keeping the stock subframe. Any advice helps.
The plan for the build is stock pistons and rods, new rockers and rollers. New intake, sloppy stage 2 cam, single turbo, t56 trans. We are shooting for 500whp. My question is what turbo, headers and intercooler will fit and work in the firebird. With minimal to no fabrication. Also keeping the stock subframe. Any advice helps.
06-05-2019, 09:15 PM
#3
TECH Senior Member
06-06-2019, 06:28 AM
#4
its LS1tech, wont be much bashingo here, in fact I dont think I got any on this forum... but go to a Pontiac forum and post this!!!! WOW they defiantly go crazy....
Anyways, I just had the whole front cap off my 72 during my Ls swap and you will have plenty of room for a turbo, and should be plenty of room for a intercooler. But just from the looks of it without cutting up the front bumper/grill I dont think you will get enough air flow for a very efficient air to air. Have you thought about running an air to water intercooler?
either way your gonna be doing fabrication with the LS swap, turbo, plumbing, fuel system, ect
Anyways, I just had the whole front cap off my 72 during my Ls swap and you will have plenty of room for a turbo, and should be plenty of room for a intercooler. But just from the looks of it without cutting up the front bumper/grill I dont think you will get enough air flow for a very efficient air to air. Have you thought about running an air to water intercooler?
either way your gonna be doing fabrication with the LS swap, turbo, plumbing, fuel system, ect
06-06-2019, 06:58 AM
#5
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its LS1tech, wont be much bashingo here, in fact I dont think I got any on this forum... but go to a Pontiac forum and post this!!!! WOW they defiantly go crazy....
Anyways, I just had the whole front cap off my 72 during my Ls swap and you will have plenty of room for a turbo, and should be plenty of room for a intercooler. But just from the looks of it without cutting up the front bumper/grill I dont think you will get enough air flow for a very efficient air to air. Have you thought about running an air to water intercooler?
either way your gonna be doing fabrication with the LS swap, turbo, plumbing, fuel system, ect
Anyways, I just had the whole front cap off my 72 during my Ls swap and you will have plenty of room for a turbo, and should be plenty of room for a intercooler. But just from the looks of it without cutting up the front bumper/grill I dont think you will get enough air flow for a very efficient air to air. Have you thought about running an air to water intercooler?
either way your gonna be doing fabrication with the LS swap, turbo, plumbing, fuel system, ect
06-06-2019, 08:44 AM
#6
I haven't went turbo "YET" just N/A for now on a very tight budget....
But if it were me I would atleast gap the rings and do a small turbo cam. And I only say that because I know you will get the itch for more than 500hp. I dont know your budget but if you can swing it a set of summits new forged pistons and a set of Gen 4 rods would be good for considerably more power, or at the very least would last alot longer. If you honestly plan to keep it at 500Hp or stay then just leave it stock and get a good tuner. but a lm7 is only $350 at a pull a part and I still see them daily for $600-700 complete already pulled so if you pop one its not really a big deal if you keep it stock.
But if it were me I would atleast gap the rings and do a small turbo cam. And I only say that because I know you will get the itch for more than 500hp. I dont know your budget but if you can swing it a set of summits new forged pistons and a set of Gen 4 rods would be good for considerably more power, or at the very least would last alot longer. If you honestly plan to keep it at 500Hp or stay then just leave it stock and get a good tuner. but a lm7 is only $350 at a pull a part and I still see them daily for $600-700 complete already pulled so if you pop one its not really a big deal if you keep it stock.