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Hi I just picked up a 93 bone stock coupe auto and have a set of AFR180 heads from my parted out Camaro, also plan on a cam upgrade. anyone have 180's 55cc on their LT1.. how much gain did you get?
Depends on the cam used and exhaust set-up. The 180 heads and a 503 cam was a torque monster for me. That was with LTs and no cats. I was running 12.3-12.5
Another option would be to send the AFRs to Lloyd and have them ported. I sent mine off and had them ported to 210cc. I also installed a larger custom cam. Now I'm running 11.5s. The heads picked up 45cfm on the intake and 35cfm on the exhaust. The car is a beast now on the stock short block.
If you will be keeping the heads at 180cc, the 503 cam would be a great street cam. You will need better springs because it will be very close when talking about lift tolerances, especially with 1.6s. If you have the heads ported, a larger cam can be used to make the most out of the extra flow.
Depends on the cam used and exhaust set-up. The 180 heads and a 503 cam was a torque monster for me. That was with LTs and no cats. I was running 12.3-12.5
Another option would be to send the AFRs to Lloyd and have them ported. I sent mine off and had them ported to 210cc. I also installed a larger custom cam. Now I'm running 11.5s. The heads picked up 45cfm on the intake and 35cfm on the exhaust. The car is a beast now on the stock short block.
If you will be keeping the heads at 180cc, the 503 cam would be a great street cam. You will need better springs because it will be very close when talking about lift tolerances, especially with 1.6s. If you have the heads ported, a larger cam can be used to make the most out of the extra flow.
Thanks for reply. I am going to keep heads as is, I pulled off my Camaro which I was running 11.6 with a hot cam on a 383 which was not the best setup. I bought the car that way. I'm not necessarily looking to go a particular time this go round, just a decent street car with a nice sounding Idle. anything in 12's will suit me fine.
Left Lane
Thanks for reply. I am going to keep heads as is, I pulled off my Camaro which I was running 11.6 with a hot cam on a 383 which was not the best setup. I bought the car that way. I'm not necessarily looking to go a particular time this go round, just a decent street car with a nice sounding Idle. anything in 12's will suit me fine.
Left Lane https://youtu.be/xl3fO_MIP0s
Nice! I wish I could get out of the hole like that. Launching a C4 can be a bit tricky. A solid axle makes it look too easy. Something else I forgot to mention. You will want a gear and TC swap asap. The auto gears in these are only 2.59 unless you have the optional which was 3.07. Either way, not the greatest.
AFR Heads Upgrade
