LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Comp 977 springs

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Old Feb 19, 2006 | 12:09 PM
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Default Comp 977 springs

Comp 977 dual springs, anyone know offhand if these will fit an unmodified l1 head? they were made for SBC use..
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Old Feb 19, 2006 | 08:03 PM
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No they will not. The spring seats in an LT1 are not big enough. Great spring though...I run 'em.
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Old Feb 20, 2006 | 02:04 PM
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I have used the 977s on many stock LT1 heads for that reason.....they DO fit without any machining. Just run the flat (not the cupped) spring seats from Comp.

Jason
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Old Feb 20, 2006 | 02:12 PM
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All you need is to grind a very small piece that hits the cup, I did my two heads in 10 minutes it is that easy. Just put your cup in there and you will see what I am talking about. Use the cupped seat they are much more reliable.
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Old Feb 20, 2006 | 10:35 PM
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Originally Posted by MrBill97396
All you need is to grind a very small piece that hits the cup, I did my two heads in 10 minutes it is that easy. Just put your cup in there and you will see what I am talking about. Use the cupped seat they are much more reliable.
That's what I'm referring to.
edit: I just checked and you're right, the o.d. of the 977 will fit (1.460"). I have the o.d. of a different spring on the mind (#930) for another car.

Last edited by SS MPSTR; Feb 20, 2006 at 11:18 PM.
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