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fastmachone · 06-10-2012, 06:51 PM

I am interested in building a 347 for IHRA crate motor, however I do not want to use the Boss Block. Can I substitute a factory 289 or 302 block instead?

06-10-2012, 06:51 PM	#1
fastmachone Junior Member Join Date: Jun 2008 Location: Indian Head, MD Posts: 27 Likes: 0 Liked 0 Times in 0 Posts	IHRA crate motor questions I am interested in building a 347 for IHRA crate motor, however I do not want to use the Boss Block. Can I substitute a factory 289 or 302 block instead?