I am installing a new intake soon on my 92 RS and have a question regarding the gasket install... I am planning on using black RTV for the front and rear seals. I have seen posts that say to run the RTV up the sides of the heads a little bit as well. Is this over or under the intake gaskets? What RTV should I use around the water jackets? Also, when removing / tightening the bolts, should I follow a carb intake pattern?

 

ttt

 

I don't know what RTV is but I'm sure I could find out. What I do is just use thick high temp blue silicon sealant. Make it really thick and it should be fine. Torque it down just like a carb intake if you've got normal bolt pattern. If it's vortec heads it's a little different, they don't require as much torque and the pattern is a little different (duh..only 4 bolts a side).

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, Jon (350 TBI! getting 23mpg highway)
91 Red RS w/grey int, sq stereo (Alpine v12, kicker solo, MB quart premium etc)AIM: JPrevost

• Holley 670 TB unit w/ 1/2" spacer/adapter
• Edelbrock RPM vortec intake
• 350ho 330hp vortec crate motor
• 8" harm. balancer
• Stewart stage 2 water pump w/160 thermo
• SLP tri-y headers to full 3"
• Rebuilt trans w/ SLP shift kit
• Centerline 16x8's all around
• 36/24 mm sway bars
• Full poly bushings, even motor mounts
• SLP LCA and panhard
• Alston SFCs
• Edelbrock 3 point STB
• Global west steering brace aka wonderbar
• Eibach pro kit springs
• Bilstien high perf. struts and shocks
• All this and I still have AC

My websiteAny questions?

 

I put a bead down across each end and maybe 1/4" up the head. The gasket then goes in place and another small dab covers the junction of the other side of the gasket and the RTV.

If your talking about between the intake and heads, most gaskets don't require sealant here. Check the directions on your gaskets. On other gaskets like the water neck and water pump, I smear a thin layer or blue RTV.



[This message has been edited by Dan W (edited April 19, 2001).]

 

So far I've been apart of 3 perfect intake swaps. Run a THICK bead front and back, little ways up the heads too. Put a little bit around the water jackets too, not too much because the gaskets will smear what you put.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

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EFI & Intake Options
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