Author Topic: Time for some upgrades.  (Read 2097 times)

Offline Displaced_Txn

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Time for some upgrades.
« on: August 30, 2013, 09:38:28 pm »
Finally got my 77 K5 400 sbc running again minus a few parts that I'm on the search for. But have been wanting to do some motor work to the engine. Engine was stock till 2 months ago when all i did was throw a high flow k&n air filter on it and some hooker long tube headers. Truck is going to be a street driven toy along with the hitting the beaches and mud every now and then. What would we a good cam with a good street sound and provide good power along with a intake manifold? Plan on doing a full upgrade on the ignition side, removed the a/c compressor from the truck, and having the q-jet profesionally rebuilt and tuned for the truck. Not wanting to go super cheap on the set up and don't want to break the bank on the set up either so someting mildly priced.

Offline rich weyand

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Re: Time for some upgrades.
« Reply #1 on: August 31, 2013, 12:07:29 am »
Sean Murphy at SMI recommended the Comp 12-235-2 to me for my '78 350.  He said it was the closest thing to a ZZ4 cam if I wasn't going to go to roller lifters.  I went to a lower rpm, torquier 12-300-4 because of the kind of driving I do (pretty much all in town), but the 12-235-2 is what Sean recommended as his pick for an all-around great cam.  It's a 254/262.  It won't have the chunky idle you may be looking for though.  Numbers on a 400 with Qjet, decent manifold, long headers, and 8.5:1 static compression ratio (stock heads) are 443 lb-ft at 3000 and 313 hp at 4000.  Torque is 358 lb-ft at 1000 and 419 lb-ft at 1500, so it comes on real fast.  Terrific hole shot.
Rich

"Working Girl": 1978 K-10 RCSB 350/TH350/NP203 +2/+3 Tuff Country lift

Offline Displaced_Txn

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Re: Time for some upgrades.
« Reply #2 on: August 31, 2013, 12:12:37 am »
I'll definitely have to look into that cam. Just looking to make it a fun toy to mess around with while my daily driver goes in for way to much in power adders.