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Old

Feb 28, 2005 | 08:11 AM

#1

Hvymtlc5

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From: Lake Ozark, MO

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Spark Plug Advice

Need advice on sparkplug selection. My block is a 74 454. Heads are 68 427. Should I buy plugs for the 1974 454 block (AC - R44T) or for the 1969 427 heads (AC - R43XLS), or neither?

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Old

Feb 28, 2005 | 10:43 AM

#2

pws69

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From: Eastern US XX

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Quote:

Originally Posted by Hvymtlc5

Need advice on sparkplug selection. My block is a 74 454. Heads are 68 427. Should I buy plugs for the 1974 454 block (AC - R44T) or for the 1969 427 heads (AC - R43XLS), or neither?

for the 1969 427 heads (AC - R43XLS). If they foul because they are too cold (probably not), you might go to an (AC - R44XLS).

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Old

Mar 1, 2005 | 10:31 AM

#3

Hvymtlc5

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From: Lake Ozark, MO

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Thanks for the reply - I was leaning in the direction, just wanted to confirm.

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