some help please and thank you - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mctattooer · 05-26-2016, 08:01 PM

ok working on the big block 454 1st question the intake has 2 holes side by side behind thermostat housing that run under where carb bolts on what are they and can i just plug them.

2nd. it has a chrome oil pan with hole for dipstick tube. i have atube but its awful loose and dont think its the right one can someone point me in right direction?

**kwmech** · 05-26-2016, 10:12 PM

Those 2 holes are for an EGR valve one is vacuum and the other is a blow hole for the exhaust. The riser with the threaded hole is for the clamp bolt.

mctattooer · 05-26-2016, 10:23 PM

Quote:

Originally Posted by kwmech

Those 2 holes are for an EGR valve one is vacuum and the other is a blow hole for the exhaust. The riser with the threaded hole is for the clamp bolt.

So plugging is fine thanx

05-26-2016, 08:01 PM	#1
mctattooer Registered User Join Date: Feb 2016 Location: euharlee ga Posts: 107	some help please and thank you ok working on the big block 454 1st question the intake has 2 holes side by side behind thermostat housing that run under where carb bolts on what are they and can i just plug them. 2nd. it has a chrome oil pan with hole for dipstick tube. i have atube but its awful loose and dont think its the right one can someone point me in right direction? Attached Images

05-26-2016, 10:12 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,659	Re: some help please and thank you Those 2 holes are for an EGR valve one is vacuum and the other is a blow hole for the exhaust. The riser with the threaded hole is for the clamp bolt.



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