Cam up-grade

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Jan 23, 2008 | 11:17 AM

sedly

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From: Revelstoke B.C.

Cam up-grade

I am purchasing a used 300 I6 tomorrow.I already have one in my '76 HiBoy now but it need's to be re-built.My question is-If I were to put a stronger cam (Comp 268 for example)in the motor,would the piston's need to be changed as well?

Jan 23, 2008 | 07:29 PM

6CylBill

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From: Almost Heaven

I'm curious about this too. I plan on putting a better cam in mine when I rebuild it (hopefully not any time soon) and I don't know the first thing about cam's.

Jan 23, 2008 | 07:33 PM

Duke78

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where'd you get a new 300?

Jan 23, 2008 | 09:55 PM

sedly

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From: Revelstoke B.C.

Quote:

Originally Posted by Duke78

where'd you get a new 300?

Not you again

!Well it's not new,it will be new to me.

Jan 24, 2008 | 07:48 AM

sedly

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From: Revelstoke B.C.

Quote:

Originally Posted by sedly

I talked to a guy at work last night,he figures there's no need to change pistons unless the cam requires different compression.?I don't know.

Jan 24, 2008 | 10:32 AM

Silver Streak

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From: Broken Arrow, OK

The 268 should be fine, but anything larger would have me wondering with the carb head and pistons. On the EFI engines you'd have to get a pretty lumpy cam to even come close.