comp 1.85 rockers
01-16-2008, 05:27 AM
#1
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comp 1.85 rockers i got a good deal on them are they worth using in my truck motor im building
ported and polished 243s
on a 5.3 block with 11.1 compression
with this cam
Duration at 050 inch Lift: 216 int./224 exh.
Lobe Separation (degrees): 115
lift: 561
comp 918 springs
ported and polished 243s
on a 5.3 block with 11.1 compression
with this cam
Duration at 050 inch Lift: 216 int./224 exh.
Lobe Separation (degrees): 115
lift: 561
comp 918 springs
01-16-2008, 08:41 AM
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If they're the comp pro mags and you pass on them let me know. I have a set of the pro mag 1.75's that I want to trade for a set of the 1.85's.
PTV means piston to valve clearance. If the heads are milled and depending on the valve size they could touch.
Lift would be right around .610
Max lift for the 918's are .600 or .625 if you have the newer version.
PTV means piston to valve clearance. If the heads are milled and depending on the valve size they could touch.
Lift would be right around .610
Max lift for the 918's are .600 or .625 if you have the newer version.
01-16-2008, 08:58 AM
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lift...
.561 / 1.7 =.330
.330 X 1.75 = .577
.330 X 1.8 = .593
.330 X 1.85 = .610
i was told with the 918s...even the old ones that i have...max lift is .620 or so. but .610 would be pushing it. may as well spend the $$ and get patriot duals to handle .650
.561 / 1.7 =.330
.330 X 1.75 = .577
.330 X 1.8 = .593
.330 X 1.85 = .610
i was told with the 918s...even the old ones that i have...max lift is .620 or so. but .610 would be pushing it. may as well spend the $$ and get patriot duals to handle .650