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medicman775 · 09-19-2012, 01:15 AM

Yes...the original plan was for a 454 w/roller rockers and tall valve covers. You couldn't remove the short covers on the 454 that I took out of the burb. The box was made and grafted in to clearance the valve covers and more room for the HEI dist. The motor plans have changed to a 396/402 with short covers but the extra room will be nice.

09-19-2012, 01:15 AM	#47
medicman775 Registered User Join Date: Nov 2011 Location: Sparks, Nv Posts: 152	Re: 71 GMC 1-ton 4X4 build Yes...the original plan was for a 454 w/roller rockers and tall valve covers. You couldn't remove the short covers on the 454 that I took out of the burb. The box was made and grafted in to clearance the valve covers and more room for the HEI dist. The motor plans have changed to a 396/402 with short covers but the extra room will be nice.