Ported Merlin Heads
09-16-2011 | 12:24 PM
#1
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Joined: Jan 2003
Posts: 6,018
Likes: 1,521
From: Grand Rapids, MI
Ported Merlin Heads
Ported Merlin Heads / Valako Raceheads
I have a bare set of Merlin Wedged Heads. Wedged, chambers and runners hand ported by JimV. These made 587HP on my 454's and they made 713HP on a 540. I only have 20 hours on them from when they were last freshened up.
$700
Manley intake and Ferrea exhaust valves also available.
I can also have Jim load them if you want them complete
Flow #'s
Lift IN EX
.2 165 126
.3 238 161
.4 297 215
.5 340 250
.6 360 267
.65 364 270
.7 372 273
.8 378 275
I have a bare set of Merlin Wedged Heads. Wedged, chambers and runners hand ported by JimV. These made 587HP on my 454's and they made 713HP on a 540. I only have 20 hours on them from when they were last freshened up.
$700
Manley intake and Ferrea exhaust valves also available.
I can also have Jim load them if you want them complete
Flow #'s
Lift IN EX
.2 165 126
.3 238 161
.4 297 215
.5 340 250
.6 360 267
.65 364 270
.7 372 273
.8 378 275
09-16-2011 | 09:41 PM
#3
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Registered
Joined: Jan 2003
Posts: 6,018
Likes: 1,521
From: Grand Rapids, MI
approximately 122cc, steel not aluminum, and yes they will work on a 525sc. They would probably lower your boost, and build more horsepower compared to a stock GM rectangle port.
