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Help With my crate 427 Engine Won't Start Help With my crate 427 Engine Won't Start
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  #1 (permalink)  
Old 02-12-2024, 01:28 PM
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Default firing order
Are you using the 351 or 302 firing order? their different.
most cam manufactures use the 5.0 HO firing order
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Old 02-12-2024, 02:07 PM
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Quote:
Originally Posted by bobcowan View Post
If it is backfiring through the intake, then it is firing while the intake valve is open.
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Originally Posted by rustyrims View Post
Are you using the 351 or 302 firing order? their different.
most cam manufactures use the 5.0 HO firing order
I wonder if the two are related... Worth checking.
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Old 02-12-2024, 02:43 PM
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Question crate engine
I know you are talking about a 427 sb , I have a ford racing 347 the firing order is 1-3-7-2-6-5-4-8
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