HP 500 carb spring recomendations
07-11-2004, 06:56 PM
#1
Registered
Thread Starter
Join Date: Mar 2002
Location: Livonia, Michigan
Posts: 360
Likes: 0
Received 0 Likes
on
0 Posts
HP 500 carb spring recomendations
Anyone have the parts numbers for the springs and retainers?
How about installed height and pressure?
Thanks in advance!!!
How about installed height and pressure?
Thanks in advance!!!
07-11-2004, 07:21 PM
#2
Gold Member
Gold MemberJoin Date: Oct 2002
Location: Fairport,NY
Posts: 747
Likes: 0
Received 0 Likes
on
0 Posts
Re: HP 500 carb spring recomendations
Here's what the Mercruiser Service Manual shows for the HP500 valve springs- 150# on the seat with a 1.90 " installed height. 420# open spring pressure. Can't help with the part numbers.--Lou
07-12-2004, 12:32 PM
#5
MarineKinetics
Platinum Member
Re: HP 500 carb spring recomendations
sre,
The springs for the HP 500 cam (#169611) are Crane part #99896.
132#@1.906"
414#@1.306"
Stack 1.085"
470 #/in.
Retainers #'s vary according to application.
As per infomaniac the Isky springs are good pieces.
It has been our experience that PSI springs are the finest springs on the market today. They supply many IRL, Cup, Busch, Truck, Pro Stock, etc. teams today and also manufacture the premium Tool Room line for Isky.
Bob
The springs for the HP 500 cam (#169611) are Crane part #99896.
132#@1.906"
414#@1.306"
Stack 1.085"
470 #/in.
Retainers #'s vary according to application.
As per infomaniac the Isky springs are good pieces.
It has been our experience that PSI springs are the finest springs on the market today. They supply many IRL, Cup, Busch, Truck, Pro Stock, etc. teams today and also manufacture the premium Tool Room line for Isky.
Bob
