LT4 springs on LT1 heads.....

Posted by rgv on June 18, 1998 at 12:43:33:

I have a question about compatibility of the LT4 HOT cam kit on stock LT1 heads/valves.

I know they say it's for LT1/LT4 motors, but the LT4 valves are hollow and quite a bit lighter ( I forget the numbers but I think they were 20-30% lighter). The LT4 springs seem marginal for high rpm use on solid valves (#101 closed #275 open),especially at the 525 lift of the HOT cam.

I'm runnning the LT4 springs and 1.6 rockers from the HOT cam kit on my LT1 with good results, but am wondering if I should upgrade the springs when I stuff the cam in this summer.

Thanks in advance.

Raul

Follow Ups:

• LT-4 springs work great. PARTMASTER 00:58:42 6/24/98 (2)
  • thanks......more LT1/LT4 questions rgv 00:48:40 6/30/98 (1)
    • Re: thanks......more LT1/LT4 questions PARTSMASTER 01:40:47 7/08/98 (0)

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