Engine swapping issues...

I am currently in the process of swapping engines in my '93 c1500. I pulled the stock 350 and bought a pre 1980 350 with 290hp from crateenginedepot.com. I am looking to keep my ECM and TBI and 4L60E due to cost reasons. The company I purchased my engine from says that it calls for a pre 1980s intake.

My question is this: Can I simply purchase a performance intake (preferably Edelbrock) made for use with a 4bbl carb and install an adapter to make it work for a 2bbl TBI. I have seen adapters like that fpr sale on TCI's website for about 50 bucks.

Also, will this adapter decrease the hp that might be gained from a performance intake. And does anybody know where I can find a good deal on performance TBI and one that is of good quality?

Thanks in advance for all of your help...

Come on guys, I know somebody out there has some advice or comments....

What cam shaft is in the new engine? If you want to keep the TBI, then it needs to be a TBI grind.

The 2 piece seal also requires a different Flex plate than the 1 piece seal version that you currently have.

Good luck with the swap.

//2000CAYukon

The heads are differant too,intake will not bolt up to the heads.

The heads are differant too,intake will not bolt up to the heads.

I know the heads from that year are different from the 93 model. Hence the reason I want to purchase a performance intake that is compatible with that enging...


Back to the point, here are the specs for the engine:

Quite simply, the 290 HP 350-cubic-inch is the best small-block crate engine value offered by GMPP! With 290 horsepower and 326 lb.-ft. of torque, it makes a great replacement engine for countless GM vehicles, while its all-new construction provides peace of mind over salvage and rebuilt engines. The 290 HP is packed with good stuff, too, starting with the four-bolt-main block, aluminum pistons, and a hydraulic camshaft. The durable iron cylinder heads process healthy amounts of air to deliver strong torque across the rpm range and great mid-range horsepower. Delivered as a long block assembly, you add items like an intake manifold, carburetor, ignition system, starter, balancer and water pump—all available from GMPP. Build it up to suit your needs, as the economical 290 HP will leave plenty of change on the table! Our lowest priced crate engine.
This HP 290/350 is the best value crate engine from GM Performance Parts, with 290 horsepower @ 5100 RPM, and 326 lb-ft. of torque @ 3750 RPM on 87 octane fuel.

The HP 290 horsepower will provide great durability because of its 4-bolt mains, PM steel rods, strong cast aluminum pistons.
The camshaft has .450" intake and .460" exhaust lift with hydraulic flat tappets.
The cast iron cylinder heads have 1.94" intake and 1.50" exhaust valves wit 76 cc combustion chamber. These heads have the conventional 90 degree with 12 bolt intake manifold attaching design used from 1955 thru late 1980 12 bolt postion @ 90° to the intake/headflange.
This engine was designed to work with the following components:
intake manifold 10185063.
HEI distributor 93440806.
balancer 12551537.
flex plate 471529.
Bolt on the starter,water pump, fuel pump, and your ready to run.

So I figured out a solution.... I purchased the Edelbrock 2701 intake, a transadapt tbi to carb intake adapter, and a tbi rebuild kit. These should all work nicely since the parts fit the specs of this engine. With a lil adjusting to the ecm, I will be all set. Thanks for the replies that did help though.