Page 277 - VSI Master Catalog
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ISKY VALVE SPRINGS
• Isky has valve springs to cover many performance applications.
• Whether you’re looking for street or all-out competition in a single, dual, and triple springs, Isky has a valve spring for you. • Set of 16.
Color
Seat
Open
Coil
Max
Code
O.D/I.D.
Pressure
Pressure
Bind
Lift
Outer With Damper
ISK205D
Yellow
1.260/.886
115 @ 1.700”
268 @ 1.210”
1.160"
.490”
ISK305DHS Org/Yell
ISK6105 Red ISK8005-A Blue ISK8305 ——— ISK9265 Natural ISK9365 Green
1.430/1.070
1.000/730 1.005/.730 1.005/.730 1.005/.725 1.025/.740
95 @ 1.812”
135 @ 1.812” 135 @ 1.875” 160 @ 1.875” 175 @ 1.875” 215 @ 1.950”
185 @ 1.362”
315 @ 1.260” 395 @ 1.225” 380 @ 1.275” 510 @ 1.200” 550 @ 1.270”
1.120" .450”
1.120" .550” 1.160" .650” 1.175" .600” 1.130" .675” 1.170" .680”
ISK235D
Blue
1.260”/.886”
115 @ 1.700”
320 @ 1.200”
1.150”
.550”
Dual With Damper Hydraulic & Solid Lifter Cams
ISK6005
Blue
1.005/.730
135 @ 1.750”
285 @ 1.200”
1.120"
.550”
ISK6205
Natural
1.005/.725
175 @ 1.812”
350 @ 1.260”
1.160"
.550”
ISK8205
Org/Yell
1.005/.730
140 @ 1.900”
430 @ 1.250”
1.170"
.650”
ISK9205
Purple
1.040/.755
170 @ 1.950”
475 @ 1.250”
1.175"
.675”
ISK9315
Red
1.025/.740
210 @ 1.900”
520 @ 1.240”
1.130"
.660”
TOOL ROOM
•The Tool Room Series valve springs (Gold Stripe) are the ultimate in endurance quality racing valve springs.
• Spintron endurance tested with over 1,000 proven miles. • The finest racing valve springs.
• 16/set.
Outer Spr.
Inner Spr.
Seat
Open
Coil
Max
O.D./I.D.
O.D./I.D.
Pressure
Pressure
Bind
Lift
Dual Spring w/Damper
ISK9905
1.534/1.120”
1.010/.740”
165 @ 1.900”
450 @ 1.300”
1.160"
.600” Solid
ISK9925 1.534/1.120” ISK9965 1.560/1.145” ISK9985 1.560/1.145”
1.010/.740” 1.040/.740” 1.040/.740”
170 @ 1.950” 450 @ 1.350” 1.160" 245 @ 1.950” 585 @ 1.270” 1.170" 245 @ 2.000” 600 @ 1.300” 1.200"
.600” Solid
ISK9935
1.560/1.155”
1.153/.820”
245 @ 1.950”
590 @ 1.125”
1.150"
.700” Roller
.680” .700”
Roller Roller
ISK9975
1.560/1.145”
1.040/.740”
245 @ 1.970”
585 @ 1.290”
1.190"
.680” Roller
ISK9995
1.570/1.145”
1.035/.740”
250 @ 2.030”
625 @ 1.300”
1.200"
.730” Roller
ENDURANCE PLUS SERIES EXTREME HIGH ENDURANCE SPRING
• The Endurance Plus series of valve springs utilizes a pecially processed tool room material outer spring for increased endurance/reliability beyond the “SP” series.
• Endurance Plus spring are designed for late models, modifieds, ect., and are Spintron Test-proven up to 8400 rpm for 850 racing miles.
• Sold in set of 16.
• Dual with Damper.
• Use ISK90T1/10DEG titanium retainers.
Outer
Inner
Seat
Open
Coil
Max
Solid
O.D. I.D.
O.D. I.D.
Pressure
Pressure
Bind
Lift
ISK8005PLUS
1.530 @ 1.110
1.005 @ .730
140 @ 1.875”
400 @ 1.275”
1.160”
.650”
ISK8205PLUS
ISK9375PLUS ISK9375/85PLUS ISK9385PLUS
1.530 @ 1.110
1.560 @ 1.145 1.560 @ 1.145 1.560 @ 1.145
1.005 @ .730
1.040 @ .710 1.040 @ .740 1.040 @ .740
150 @ 1.900”
245 @ 2.000” 245 @ 2.000” 245 @ 2.000”
420 @ 1.300” 1.120”
600 @ 1.280” 1.180” 600 @ 1.280” 1.180” 600 @ 1.280” 1.180”
.650”
.720” .720” .720”
Roller
ISK9365PLUS
1.560 @ 1.145
1.040 @ .740
235 @ 1.950”
560 @ 1.270”
1.170”
.680”
ISK9385/85PLUS
1.560 @ 1.145
1.040 @ .740
250 @ 1.970”
580 @ 1.290”
1.190”
.680”
ISK9385
1.560 @ 1.145
1.040 @ .740
255 @ 2.000”
600 @ 1.280”
1.180”
.680”
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