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Exhaust Manifold Heat Riser help?!?!
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Topic: Exhaust Manifold Heat Riser help?!?! (Read 2431 times)
Halogin13
Newbie
Posts: 38
Newbie
Exhaust Manifold Heat Riser help?!?!
«
on:
October 31, 2016, 09:32:35 AM »
Hi all, newbie here.. hoping to find some help here..
I have a 1987 V10 Silverado, 5.7L TBI 350...
I cannot locate a heat riser for the life of me... I have narrowed down an ATP model, Part No. 105004... yet actually finding one I can purchase is another story..help!!!!!
http://www.myautopartswholesale.com/catalog-1/search
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1987 V10 P/U
bd
Global Moderator
Senior Member
Posts: 6459
Re: Exhaust Manifold Heat Riser help?!?!
«
Reply #1 on:
October 31, 2016, 12:23:32 PM »
That's because the 1987 TBI didn't use an EFE valve. The vacuum operated EFE valve and its older counterpart, the bimetal operated heat riser valve, were specified for carbureted engines.
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Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)
Halogin13
Newbie
Posts: 38
Newbie
Re: Exhaust Manifold Heat Riser help?!?!
«
Reply #2 on:
October 31, 2016, 12:45:34 PM »
Hmm.. I'm having an exhaust shop as well as a reputable carb shop tell me that this is the part I need .its the only part that I don't have.. . would it make a difference that this is a California truck? I'm piecing back the Smog system.. cause I have to.. to get this truck back on the road 😔
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1987 V10 P/U
bd
Global Moderator
Senior Member
Posts: 6459
Re: Exhaust Manifold Heat Riser help?!?!
«
Reply #3 on:
October 31, 2016, 01:55:26 PM »
Makes no difference. California and federal specifications called for the same emission system configuration on R/V TBI trucks. 1987 TBI did not use an EFE valve. It was unnecessary. Instead, the intake was heated by coolant flowing through a cast passage in the floor of the plenum. There was no facility for an exhaust crossover. Refer to the emission control label affixed to the truck's radiator support and the
1987 Light Duty Truck Fuel, Drivabilty and Emissions manual
.
«
Last Edit: October 31, 2016, 05:18:45 PM by bd
»
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Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)
Halogin13
Newbie
Posts: 38
Newbie
Re: Exhaust Manifold Heat Riser help?!?!
«
Reply #4 on:
October 31, 2016, 03:38:47 PM »
Thank you so much!!
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1987 V10 P/U
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Exhaust Manifold Heat Riser help?!?!