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Mod | | | Forums66 Topics128,024 Posts1,055,395 Members48,422 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Nov 2008 Posts: 49 New Guy | | New Guy Joined: Nov 2008 Posts: 49 | Where can I get an intake for a 87 350? As it is now it is a tbi I want to change to carburated.Who makes these intakes? Is it a simple swap? | | | | | Joined: Jul 2006 Posts: 79 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2006 Posts: 79 | This is a swap I've never done. Most folks are going the other direction. In THEORY, you could do it. An Edelbrock intake should bolt right in. I think you'd have too much pressure from your existing fuel pump. Bluedawg
Bluedawg
God fearing, Gun toting, Constitution loving extremist.
| | | | | Joined: Nov 2008 Posts: 49 New Guy | | New Guy Joined: Nov 2008 Posts: 49 | I woulk keep it fuel injected but, I have the orig. tank as I understand it I would have to change tanks for some kind of return line. | | | | | Joined: Nov 2008 Posts: 137 Shop Shark | | Shop Shark Joined: Nov 2008 Posts: 137 | Not sure what your application is. If your heads are centerbolt 64 cc you will have a good street motor. Your heads might be Vortecs. Edlbrock sells a Vortec specific intakes. If you have hood clearance use an RPM airgap. If you are on a budget there are other manifolds out there made overseas. They are knock-offs and are decent but you will have to run a thread chaser through the holes where the carb and accesories bolt up.
Simple swap-- depends on your mechanical ability.
Disconnect battery Pull the distributor. Put your engine in TDC. Pull the alternator Pull the Power steering pump Pull the water pump Pull the water outlet and associated hoses. Little tip cut the hoses at the outlets, makes it easier to pull and not bust a radiator or ?
If you have the $$$ replace them all, hoses, belts, Alt, WP, PS, Water outlet, Thermostat, PS hoses.
Put engine on TDC and pull the distributor. Pay attention to where the dizzy is in respect to the manifold. Look at where the rotor is pointing and mark the cap and base of the dizzy. Do not turn over engine. Also a good time to replace plugs, dizzy cap, rotor, SP wires. When you stab the dizzy place white grease on the dizzy gear. When you restab it make sure the round gasket at the base of the dizzy is in good shape. You may have to make several attempts to make sure the dizzy and the oil pump cog line up.
Use good gaskets - Felpros. Only put RTV on the water inlets, the outer most square ports. pay attention to tightening sequence and torq values..11 lbs I believe.
I would use a Holley 650 or 600. Good carb. Edlebrock carbs are fussy to about fuel pressure. If you change out the cam.. It's a whole new ball game. | | | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | 87's are not the famed "vortec" heads. Those are '96-2000 truck heads unless someone swapped them. If you keep it EFI - you need to either have an external fuel pump with a return line to the tank, or you can simply create a fuel reservoir where the in-tank fuel pump sits in and you run the return to that. do a google search on EFI conversions, or check out www.jagsthatrun.com and buy their book. I have done EFI swaps a few times. If you need more pointers, PM me.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
| | | | | Joined: Nov 2008 Posts: 49 New Guy | | New Guy Joined: Nov 2008 Posts: 49 | Thanks for the info guys.I am sure I will have more questions | | | | | Joined: Jun 2007 Posts: 17 New Guy | | New Guy Joined: Jun 2007 Posts: 17 | The difference in bolt pattern in that the center 2 bolts are on a different angle due to the riser for the throttle body. A cheap way of fixing this is to elongate the center 4 bolt holes. Add some pipe sealant so that oil will not be pushed up the threads. Edelbrock will make a carb intake for the TBI heads. You will still need a external fuel pump because the block does not have a place for it. | | | | | Joined: Jan 2009 Posts: 8 New Guy | | New Guy Joined: Jan 2009 Posts: 8 | Elongating the bolt holes works fine. We have done it many times. | | |
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