'86 L98 Stock cam specs
11-26-2002, 07:41 AM
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'86 L98 Stock cam specs
Where can I find specs for the stock GM cam in my '86 L98? My shop manual gives the lift but no duration figures. I'm rebuilding the engine and want a mild cam upgrade without sacrificing low end but I have to know where I am now before shopping for a new stick. I could wait till the heads are off and degree the thing, but the figures must be somewhere.
Thanks
Thanks
11-26-2002, 08:19 AM
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Re: '86 L98 Stock cam specs (Five Window)
Hi.
I have an 85 and know that the 86 cam is not progressive at all. The 85 cam is more agressive . Both are hydraulic flattappet cams. The 87 cam is a roller with the specs of the 85. If you have the cast iron heads on your 86 (aluminium heads came later that year) Then they are not breathing well.
regards Jan-Erik
I have an 85 and know that the 86 cam is not progressive at all. The 85 cam is more agressive . Both are hydraulic flattappet cams. The 87 cam is a roller with the specs of the 85. If you have the cast iron heads on your 86 (aluminium heads came later that year) Then they are not breathing well.
regards Jan-Erik
11-26-2002, 09:08 AM
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Re: '86 L98 Stock cam specs (Five Window)
Duration @ 0.050 202/206
Lift with 1.5 R 403/415
Lobe Seperation 114.5
Lift with 1.5 R 403/415
Lobe Seperation 114.5
