Cly heads for 502
03-12-2002 | 03:22 PM
#11
Charter Member #737
Joined: Jan 2001
Posts: 1,490
Likes: 79
From: LOTO 31 mm
Originally posted by checkmate981
Kamma engine will be natruallly aspirated
KC,did you buy your heads assembled or bare.Do you guys think ss valves would be ok on the intake and exhaust or should I go with iconal(spell) exhaust?
Dave
Kamma engine will be natruallly aspirated
KC,did you buy your heads assembled or bare.Do you guys think ss valves would be ok on the intake and exhaust or should I go with iconal(spell) exhaust?
Dave
03-12-2002 | 07:52 PM
#12
Guest
Posts: n/a
Merlin heads
Rod
If you are interested I have a pair of freshly done Merlin rectangular port heads for sale. Here are their specs.....Stage IV porting, 2.250 SS severe duty intake valves, 2.190 Inconel exhaust valves, hardened seats, bronze guides, titanium retainers, billet locks, studs and guide plates, pacaloy hyd. roller springs, PC seals. Here are the flow numbers at 28" of test pressure using 4.47 Bore Diameter, with your 4.500 the flow will increase slightly.
Lift Intake Exhaust
.200 162 126
.300 242 186
.400 294 235
.500 340 266
.600 370 287
Using these heads with a very mild cam .547/.547 and 226/232 we consistently produce 570 HP @ 5400 and 500+ ft/lbs of torque from 2400 up with 570 peak @ 4700 and still making 535 @ 5400 utilizing a Holley HP 950 with minimal modification. $3500.00 Lesser packages available.
If you are interested I have a pair of freshly done Merlin rectangular port heads for sale. Here are their specs.....Stage IV porting, 2.250 SS severe duty intake valves, 2.190 Inconel exhaust valves, hardened seats, bronze guides, titanium retainers, billet locks, studs and guide plates, pacaloy hyd. roller springs, PC seals. Here are the flow numbers at 28" of test pressure using 4.47 Bore Diameter, with your 4.500 the flow will increase slightly.
Lift Intake Exhaust
.200 162 126
.300 242 186
.400 294 235
.500 340 266
.600 370 287
Using these heads with a very mild cam .547/.547 and 226/232 we consistently produce 570 HP @ 5400 and 500+ ft/lbs of torque from 2400 up with 570 peak @ 4700 and still making 535 @ 5400 utilizing a Holley HP 950 with minimal modification. $3500.00 Lesser packages available.
