79 360 2bbl build advice needed
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79 360 2bbl build advice needed
winter is here and our 86 RC 318 is wore out.
Strangely enough, my boneyard had no good carb 318’s but more than 1 good 360 2bbl so that and a 360 converter for the 727 came back with me.
Have any of you tried keeping a 2bbl intake (even a Holley 5002bbl counts) with a hotter cam, headers and seeing the RC has lean burn a performance curved ign system?
Strangely enough, my boneyard had no good carb 318’s but more than 1 good 360 2bbl so that and a 360 converter for the 727 came back with me.
Have any of you tried keeping a 2bbl intake (even a Holley 5002bbl counts) with a hotter cam, headers and seeing the RC has lean burn a performance curved ign system?
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From: Clayton MI
I assume the 79 is NOT computer controlled carb? If not, putting a small four barrel on there would be a smile-inducing upgrade. 
Don't go overboard on the carb, something with relatively small primaries, with larger secondaries, would give you the low end torque you want, but plenty of power is you start tickling the radiator with your toenails. It would also nicely compliment any other mods you do. Not having to deal with a computer, makes life MUCH easier for ya. Still lots of choices out there for the old LA engines.
Don't go overboard on the carb, something with relatively small primaries, with larger secondaries, would give you the low end torque you want, but plenty of power is you start tickling the radiator with your toenails. It would also nicely compliment any other mods you do. Not having to deal with a computer, makes life MUCH easier for ya. Still lots of choices out there for the old LA engines.
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lean burn a performance curved ign system
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The headers and W200 dual exhaust kit arrived from Summit today and tomorrow the performance curved distributor/coil/wires/plugs and wiring harness plus ign bow and dual resistor will be here from Amazon. On Monday the small Lunati cam,Crower cam saver lifters and comp cams single valve springs with dampener are due from Jegs. Also from O Reilly’s I got a comp cams Magnum series dual roller timing chain for $45.99 clearance price when picking up a new oil pump and gaskets.
I really don’t want to junk the 2bbl manifold and complete transmission control linkage either. In fact we already took the die grinder and made a 1/2 cut between the barrels and port matched it to gaskets and bolted the Holley 500 adapter to the intake and used the die grinder to “smooth” the passages and continue the 1/2” slot up to the carb mounting pad. The Holley 500 2bbl came with the RC and worked ok on the 318 and with the kicdown linkage already made, I really don’t want to change it. And also on of my family drivers rolled my 87 K5 on a sunny summer day getting on the freeway on ramp so I don’t want to get to radical with the RC driveline.
Thanks for the replies everyone!
I really don’t want to junk the 2bbl manifold and complete transmission control linkage either. In fact we already took the die grinder and made a 1/2 cut between the barrels and port matched it to gaskets and bolted the Holley 500 adapter to the intake and used the die grinder to “smooth” the passages and continue the 1/2” slot up to the carb mounting pad. The Holley 500 2bbl came with the RC and worked ok on the 318 and with the kicdown linkage already made, I really don’t want to change it. And also on of my family drivers rolled my 87 K5 on a sunny summer day getting on the freeway on ramp so I don’t want to get to radical with the RC driveline.
Thanks for the replies everyone!
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Update,
we built the 360 with the Lunati voodo 207-213@.050 cam, magnum timing set, kmj distributor with Summit Racing cid box and Holley 500 2bbl on open center carb adapter. Installed it in December and other than stepping 1 size down in jetting performance was every bit as good as the thermoquad equipped 90 tbi 360 it replaced, with a bit less smoothness of throttle control.
Unfortunately while hauling snow last week one of my employees got it stuck while hauling snow and must have revved it pretty good as now I have a dull knock that sounds like spun or bad main bearing..
Currently gathering up the parts for a 440 swap.
we built the 360 with the Lunati voodo 207-213@.050 cam, magnum timing set, kmj distributor with Summit Racing cid box and Holley 500 2bbl on open center carb adapter. Installed it in December and other than stepping 1 size down in jetting performance was every bit as good as the thermoquad equipped 90 tbi 360 it replaced, with a bit less smoothness of throttle control.
Unfortunately while hauling snow last week one of my employees got it stuck while hauling snow and must have revved it pretty good as now I have a dull knock that sounds like spun or bad main bearing..
Currently gathering up the parts for a 440 swap.
Last edited by rickpilgrim; Mar 16, 2018 at 11:24 PM.