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: 8,504	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.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.