Likely the first FA2/4 hybrid incoming

[NoHaveMSG]

Originally Posted by Opie

I'm looking for 2022+ Cylinder heads, I've also got a 2013 long block. I've seen RS Motor's solution which is great, but I'm not so thrilled about the modification needed on the FA20 cylinder heads to make the FA24 work, that's why I want to try the FA24 short block & heads with the FA20 upper oil pan, timing cover cam carriers and camshafts....

They have a kit coming to use an fa24 long block. It’s 700. I was never really interested in trying to use the fa20 heads.

[FrickingReallySlow]

Originally Posted by Opie

I'm looking for 2022+ Cylinder heads, I've also got a 2013 long block. I've seen RS Motor's solution which is great, but I'm not so thrilled about the modification needed on the FA20 cylinder heads to make the FA24 work, that's why I want to try the FA24 short block & heads with the FA20 upper oil pan, timing cover cam carriers and camshafts....

How much of the valve assembly set are you gonna use from FA24 vs FA20? I'm assuming the whole thing up to the springs needs to be FA24 right which is still pretty pricy to buy OEM

[NoHaveMSG]

Originally Posted by FrickingReallySlow

How much of the valve assembly set are you gonna use from FA24 vs FA20? I'm assuming the whole thing up to the springs needs to be FA24 right which is still pretty pricy to buy OEM

You can get complete used FA24’s for about 6500. He just needs the cam trigger wheels from the FA20. 13-16 uses a different style of cam trigger and crank trigger then the 17-20 which is the same as the 2nd gen.

[Opie]

Originally Posted by FrickingReallySlow

How much of the valve assembly set are you gonna use from FA24 vs FA20? I'm assuming the whole thing up to the springs needs to be FA24 right which is still pretty pricy to buy OEM

That is currently to be seen. Ideally I'd love to be able to use the FA20 valves and springs, but haven't researched at all the specs of each. I want the FA24 heads with the FA24 short block to maintain the proper piston the head clearance and compression ratio. FA20 cam & phazers to keep the computer happy.

[Ultramaroon]

[blsfrs]

Originally Posted by Opie

That is currently to be seen. Ideally I'd love to be able to use the FA20 valves and springs, but haven't researched at all the specs of each. I want the FA24 heads with the FA24 short block to maintain the proper piston the head clearance and compression ratio. FA20 cam & phazers to keep the computer happy.

Just a note on mixing and matching.

I think there a change in some of the rocker arm/valve and maybe cam assemblies in early gen 1's. It may have been done to help eliminate rocker arm ejections. On my rebuild, my motor guy ordered a new set of rocker arms but they didn't match the original ones. He ended up sourcing a couple early rocker arms to replace my damaged ones. If you get 2014-2015 heads, you're prolly be ok.

[blsfrs]

Now that I'm looking at engine/car options.

Is using an FA24 in 2013 FRS as simple as switching the cam phasers, intake, and other external items? What am I missing?

[tomm.brz]

Originally Posted by blsfrs

Now that I'm looking at engine/car options.

Is using an FA24 in 2013 FRS as simple as switching the cam phasers, intake, and other external items? What am I missing?

interested in it too

[NoHaveMSG]

Originally Posted by blsfrs

Now that I'm looking at engine/car options.

Is using an FA24 in 2013 FRS as simple as switching the cam phasers, intake, and other external items? What am I missing?

I don’t think it is going to be quite that simple, but until I get my hands on one I don’t know for sure. There is a lot of misinformation I have come across on the swap.

[blsfrs]

Originally Posted by NoHaveMSG

I don’t think it is going to be quite that simple, but until I get my hands on one I don’t know for sure. There is a lot of misinformation I have come across on the swap.

Yeah, I've got to do a bit more research. It sound like folks are using modified fa20 heads on the fa24 block. There may be an issue with the early (2013-15) crank sensor being compatible with the fa24 block.

I've got the car home now. Next weekend, I'll try to figure exactly what's broke.

[NoHaveMSG]

Originally Posted by blsfrs

Yeah, I've got to do a bit more research. It sound like folks are using modified fa20 heads on the fa24 block. There may be an issue with the early (2013-15) crank sensor being compatible with the fa24 block.

I've got the car home now. Next weekend, I'll try to figure exactly what's broke.

I think the fuel pressure sensor or regulator might be different too. There was a bunch of stuff in discord but it is so hard to read and follow sometimes. I know the guys making the swap kit for the whole block were charging 700 for their kit. They were also talking some machining to the timing cover too but I don’t know how intensive it was.

[blsfrs]

Originally Posted by NoHaveMSG

I think the fuel pressure sensor or regulator might be different too. There was a bunch of stuff in discord but it is so hard to read and follow sometimes. I know the guys making the swap kit for the whole block were charging 700 for their kit. They were also talking some machining to the timing cover too but I don’t know how intensive it was.

I'll look into the swap kit. Do you have a link? If it uses FA20 heads and intake, i would think it would use the regulator from the FA20.

[LRNAD90]

Originally Posted by NoHaveMSG

You can get complete used FA24’s for about 6500. He just needs the cam trigger wheels from the FA20. 13-16 uses a different style of cam trigger and crank trigger then the 17-20 which is the same as the 2nd gen.

So does this mean swapping an FA24 purchased from a Wrecked 2nd gen into a '17-'00 1st gen is potentially as easy as dropping it in, hooking up the wiring and tuning the ECU?

I have to imagine its still quite a bit more difficult (sensors differences, wiring harness/plug differences, etc), but have to admit to being curious..

[RedReplicant]

There are FA24 first gens running around with a variety of sensor/harness configurations at this point, given that people stand to make money doing this the details are being kept fairly quiet. It'll be public eventually.