Texas Speed PRC 220 Heads
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Texas Speed PRC 220 Heads
Anybody running these on their C5 with a 6 speed manual. Doing Cam and long tubes and I am considering using these heads after talking to the Texas speed consultant. Says they flow 310CFM@.600 lift. $1500 Shipped.
Last edited by sfixxy; Aug 12, 2019 at 09:16 PM. Reason: Add more info
Racer
Joined: Dec 2017
Posts: 331
Likes: 74
From: Florida
The heads also have much larger than stock valves.
2.045" Intake / 1.600" Stainless Valves
I read a thread where a guy at TSP put them on his C5 Z06 and picked up 30rwhp
Because the cylinder-filling on our smaller bore engines isnt as efficient as say an LS3 (which has similar head flow numbers to the PRCs) I wouldn't go too crazy of a cam, and try to get the 60cc combustion chambers for higher compression for my particular use of my car. If you go with too large of a cam, you'll run into clearance issues with the pistons, even though I'm sure it'd be happy to rev out that far with less compression.
2.045" Intake / 1.600" Stainless Valves
I read a thread where a guy at TSP put them on his C5 Z06 and picked up 30rwhp
Because the cylinder-filling on our smaller bore engines isnt as efficient as say an LS3 (which has similar head flow numbers to the PRCs) I wouldn't go too crazy of a cam, and try to get the 60cc combustion chambers for higher compression for my particular use of my car. If you go with too large of a cam, you'll run into clearance issues with the pistons, even though I'm sure it'd be happy to rev out that far with less compression.
Last edited by 02torchred; Aug 13, 2019 at 02:19 AM.
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Joined: Nov 2012
Posts: 58
Likes: 3
The heads also have much larger than stock valves.
2.045" Intake / 1.600" Stainless Valves
I read a thread where a guy at TSP put them on his C5 Z06 and picked up 30rwhp
Because the cylinder-filling on our smaller bore engines isnt as efficient as say an LS3 (which has similar head flow numbers to the PRCs) I wouldn't go too crazy of a cam, and try to get the 60cc combustion chambers for higher compression for my particular use of my car. If you go with too large of a cam, you'll run into clearance issues with the pistons, even though I'm sure it'd be happy to rev out that far with less compression.
2.045" Intake / 1.600" Stainless Valves
I read a thread where a guy at TSP put them on his C5 Z06 and picked up 30rwhp
Because the cylinder-filling on our smaller bore engines isnt as efficient as say an LS3 (which has similar head flow numbers to the PRCs) I wouldn't go too crazy of a cam, and try to get the 60cc combustion chambers for higher compression for my particular use of my car. If you go with too large of a cam, you'll run into clearance issues with the pistons, even though I'm sure it'd be happy to rev out that far with less compression.
Racer
Joined: Dec 2017
Posts: 331
Likes: 74
From: Florida
No problem! I'd be curious to see what kind of power you'd make.
I'd bet 410-420rwhp minimum, even more if you did an intake manifold and 90mm throttle body at 430-440rwhp. If you have Z06 open air ducts or the sort it will help as well
I'd bet 410-420rwhp minimum, even more if you did an intake manifold and 90mm throttle body at 430-440rwhp. If you have Z06 open air ducts or the sort it will help as well
Last edited by 02torchred; Aug 13, 2019 at 02:46 PM.
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Halltec CAI, ls6 intake currently.
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