what cam to run with TSP PRC 5.3 2.5R heads?
01-24-2007, 09:07 PM
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what cam to run with TSP PRC 5.3 2.5R heads? I just bought a used set of the heads, and have a TR224 cam already. What would you all suggest? I do not want to flycut the pistons, and I plan on hopefully milling the heads.
01-24-2007, 09:13 PM
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i *just might* stay with the 224 cam - I hope I don't have to flycut the pistons with that even, and would also want to know how much i can mill. I think I can do to 61cc according to Patrick, but then again, there is so much to consider. 2.04/1.575 valves, 228cc etc ... blech ... i am having a time of it understanding it all. Time to read on the internet about heads 
01-24-2007, 09:16 PM
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Originally Posted by nomorews6
i *just might* stay with the 224 cam - I hope I don't have to flycut the pistons with that even, and would also want to know how much i can mill. I think I can do to 61cc according to Patrick, but then again, there is so much to consider. 2.04/1.575 valves, 228cc etc ... blech ... i am having a time of it understanding it all. Time to read on the internet about heads
I dont think a 61 cc head chamber without flycutting will work, especially with those valves. I have 2.055/1.57 and they are some thick *** valves.
01-26-2007, 09:35 PM
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if i go with a cam i will just run a .040" gasket with no milling most likely. Will something like an MS3 work w/out flycutting since i have a 2.04 valve?
01-26-2007, 10:26 PM
#7
Basic rule of thumb is you never swap for stock and you never go just a few degrees bigger. That being said:
The tr224 and those heads are one of the best street combos out there (without milling the heads) without question. IF you have to have a bigger cam then you should be thinking in the g5x3 range 234/242, wich will fit under those heads without flycutting I believe. Other big cams dont. Check with LG about that. But swapping a 224 for a 226 or 228 is kind of pointless and to be honest I put down the same numbers as an fm13 with my tr224 so I wouldnt go there either. Talk to TSP about clearance on their cams. Call them. Your going to give up torque even if you mill the **** out of the heads, your giving up torque with a bigger cam and pushing your power band further up the rpms.
The tr224 and those heads are one of the best street combos out there (without milling the heads) without question. IF you have to have a bigger cam then you should be thinking in the g5x3 range 234/242, wich will fit under those heads without flycutting I believe. Other big cams dont. Check with LG about that. But swapping a 224 for a 226 or 228 is kind of pointless and to be honest I put down the same numbers as an fm13 with my tr224 so I wouldnt go there either. Talk to TSP about clearance on their cams. Call them. Your going to give up torque even if you mill the **** out of the heads, your giving up torque with a bigger cam and pushing your power band further up the rpms.
