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#1 |
Alright Alright Alright
Join Date: Mar 2004
Location: Midland, Texas
Posts: 1,672
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vortec gasket question
im bulding a 350 with vortec heads. im using a cyclone spread bore intake that says that it wont work with factory gaskets and that i should use a fel-pro #1255 or equivalent. i have already bought and used a felpro top end gasket kit on the engine but havent put the intake on yet. what is the difference in the gaskets? the ones in the kit look like they will work just fine.
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1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies |
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#2 |
Registered User
Join Date: Apr 2006
Location: MinneSNOWta
Posts: 1,381
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Re: vortec gasket question
Aluminum intakes tend to have sealing issues.
Edelbrock makes a suggestion on what gaskets to use or not use. I would follow the MFG reccomendation, as it's their product, they know exactly what works best with it. ![]()
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2003 GMC Sierra 1500 WT 1995 Nissan Hardbody 2016 Hyundai Veloster Turbo DC2 (SW/AW) Clyde W. Harvey USN "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery" Winston Churchill |
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#3 |
Registered User
![]() Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: vortec gasket question
They std fel-pro gasket have a steel ring in them and wil dimple your aluminum intake and MAY cause leaks. Use the silcone beaded intake gaskets and you'll be just fine.
-Lance
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------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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#4 |
Senior Member
Join Date: Oct 2006
Location: Edmonton Alberta
Posts: 458
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Re: vortec gasket question
i never use the plastic factory gaskets, they suck. however if you flip the intake over and put the plastic gasket onto the intake you will probably see that the rear coolant passage is smaller than the gasket. Therefore the felpro gasket is required
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#5 |
Alright Alright Alright
Join Date: Mar 2004
Location: Midland, Texas
Posts: 1,672
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Re: vortec gasket question
well, im using a felpro gasket now, but i dont think that its the specific 1255 gasket. also the ones that i have now are the black plastic ones that have red rubber around all of the passages.
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1972 Cheyenne Chevrolet red and white 357ci, Vortec heads, GM Performance high rise intake, Comp 268H .454/.454 218/218 110 LSA Quadrajet carb, Flowtech headers, 2.25 40 series HEI, Curve kit, TH 350, 3.07 gears 275/60/15s on 15x8 rallies |
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#6 |
Registered User
Join Date: Jan 2002
Location: Lemon Grove, California
Posts: 152
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Re: vortec gasket question
The best way I have found for aluminum intakes is to use the thick Felpro # 1255 gasket and coat it with Gaskicinch torque to 13 Lbs. Good seal will result. Good luck.
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