ET Heads with 99893 springs
11-20-2006, 05:12 PM
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ET Heads with 99893 springs what are you guys runing for lifters?
What are these springs rated to?
I have a almost new set of comp oe replacemnets that i was planing on runing. my new cam will bid in the low 250s probly turning 7500.
What are these springs rated to?
I have a almost new set of comp oe replacemnets that i was planing on runing. my new cam will bid in the low 250s probly turning 7500.
11-21-2006, 06:10 AM
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I ran crane OEM replacement lifters, and 3/8" pushrods on the intake valves (figured a stiffer pushrod on the heavier intake valves couldn't hurt)
Based on lift, you can set them up to go .660 pretty safely
I was turning upwards to 7500 without evidence of float with LSK lobes.
Based on lift, you can set them up to go .660 pretty safely
I was turning upwards to 7500 without evidence of float with LSK lobes.
11-25-2006, 07:31 AM
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Originally Posted by 1984camaroz28
what are you guys runing for lifters?
What are these springs rated to?
I have a almost new set of comp oe replacemnets that i was planing on runing. my new cam will bid in the low 250s probly turning 7500.
What are these springs rated to?
I have a almost new set of comp oe replacemnets that i was planing on runing. my new cam will bid in the low 250s probly turning 7500.
#99893-16
SEAT PRESSURE=130LBS. AT 1.850
OPEN PRESSURE=402LBS. AT 1.150
MAX LIFT WITH THESE SPRINGS IS .710 W/.060 BEFORE COIL BIND
SPRING RATE=391
SPRING O.D.=1.460 (DOUBLE SPRING W/O DAMPNER)
