intake manifold gasket - The 1947 - Present Chevrolet & GMC Truck Message Board Network

292cclb · 03-04-2011, 12:12 PM

hey everyone. i've got a 292 that needs a new intake gasket. other than the rusted bolts is it a pretty easy project? thanks for any info.

Wrenchbender Ret · 03-04-2011, 01:59 PM

It usually is not a problem but can be. Often if a 292 has been run hard the ex. manifold will be warped. If it is you will have a hard time getting it back on. If the gasket between the manifolds is OK dont try to separate them because more then likely you will break the studs & bolt. If it has the laminated gasket on it know (it has a thin steel gasket on the ex ports & a different material on the intake) then you will have to separate them as you can not buy that kind anymore. The bolts should come out ok but I always replace them with grade 8 & flat washers.

Stubbs67 · 03-04-2011, 02:31 PM

rusted bolts hate PB'laster. We call it bust'a nut around my house. works friggen miracles

292cclb · 03-04-2011, 03:30 PM

thanks for the info wrenchbender ret, i will put it to good use. probably a stupid question but how can you tell if the gasket between the manifolds are bad? and i got the bolts soakin' in pb now thanks stubbs67!

*stich626* · 03-04-2011, 08:49 PM

exhaust gasket you'll know it,, it'll tick like a lifter most times,

intake spray carb cleaner around the gasket area, if the rpm changes you got a leak,,
(i use a pumbers torch bottle ,but some thing thats unsafe)

03-04-2011, 12:12 PM	#1
292cclb Registered User Join Date: Jan 2011 Location: mt holly, nc Posts: 10	intake manifold gasket hey everyone. i've got a 292 that needs a new intake gasket. other than the rusted bolts is it a pretty easy project? thanks for any info.

03-04-2011, 01:59 PM	#2
Wrenchbender Ret Registered User Join Date: Oct 2005 Location: Overland Park, Ks. Posts: 5,211	Re: intake manifold gasket It usually is not a problem but can be. Often if a 292 has been run hard the ex. manifold will be warped. If it is you will have a hard time getting it back on. If the gasket between the manifolds is OK dont try to separate them because more then likely you will break the studs & bolt. If it has the laminated gasket on it know (it has a thin steel gasket on the ex ports & a different material on the intake) then you will have to separate them as you can not buy that kind anymore. The bolts should come out ok but I always replace them with grade 8 & flat washers.

03-04-2011, 02:31 PM	#3
Stubbs67 Registered User Join Date: Nov 2010 Location: Venus, Tx Posts: 121	Re: intake manifold gasket rusted bolts hate PB'laster. We call it bust'a nut around my house. works friggen miracles __________________ 67 Short Step Project -My other wife, ya know... (she takes all my time and money and I don't even realize it) 88 Subaru wagon 4wd -Daily driver and workhorse 98 Subaru Forester S - Wife and baby wheels My Build Thread! http://67-72chevytrucks.com/vboard/s...d.php?t=433751 Need step tail gate and bed front, driver door, both front fenders (both are bondo'd nightmares). can trade fleetside bed parts real straight (except sides) or pay some cash (i am pretty broke)

03-04-2011, 03:30 PM	#4
292cclb Registered User Join Date: Jan 2011 Location: mt holly, nc Posts: 10	Re: intake manifold gasket thanks for the info wrenchbender ret, i will put it to good use. probably a stupid question but how can you tell if the gasket between the manifolds are bad? and i got the bolts soakin' in pb now thanks stubbs67!

03-04-2011, 08:49 PM	#5
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: intake manifold gasket exhaust gasket you'll know it,, it'll tick like a lifter most times, intake spray carb cleaner around the gasket area, if the rpm changes you got a leak,, (i use a pumbers torch bottle ,but some thing thats unsafe)



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