95 ' F I Chevy 4.3 Ltr, How much power can you get from this engine |
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95 ' F I Chevy 4.3 Ltr, How much power can you get from this engine |
flmont |
Feb 17 2016, 10:56 PM
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#1
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Senior Member Group: Members Posts: 879 Joined: 21-October 08 From: Tucson,Az Member No.: 9,676 Region Association: Southwest Region |
I have a 95' 4.3 Ltr FI engine that needs rebuilt,..what kind of power can U get from these engine's with factory ECU,..and spider FI system..?? Thanks
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914GT |
Feb 20 2016, 11:07 AM
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#2
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Senior Member Group: Members Posts: 1,100 Joined: 11-October 04 From: Tucson Member No.: 2,923 Region Association: Southwest Region |
Hi Frank,
Sorry we weren't able to meet up over the holidays for you to see my car. Regarding engine weights, the 575 lbs shown for a SBC is probably for a fully-assembled factory set-up with all brackets, accessories and emissions controls. I think that number is higher than typical for a 914 conversion. I measured various parts several years ago on a digital scale and this is what I got: Cast iron block with bearings/main caps/bolts - 164 lbs Assembled cast iron heads (x2) - 90 lbs Crankshaft - 48 lbs Cam - 8 lbs Piston/rods (x8) - 24 lbs Flywheel (stock, not KEP) - 28 lbs Oil pan - 6 lbs Hydraulic lifters - 3 lbs Rockers - 3 lbs Distributor - 5 lbs Aluminum intake (Edelbrock Performer) 15 lbs Total of above - 394 lbs Aluminum heads would take about 36 lbs off this weight, to 358 lbs. A KEP stage 3 clutch weighs 11 lbs. I use a Dedenbear electric water pump and water header, less than 15 lbs. Other parts adding to the weight are the carburetor, air cleaner, plugs, wires, headers, timing chain/cover, alternator, balancer, brackets/belt(s), gaskets, bolts and other hardware. These might add another 50 - 60 lbs or so but I have not measured them. Therefore I think the total weight for a Gen I SBC is more around 450 lbs with cast-iron heads. Obviously these weights are going to be different with the actual bore/stroke combo and use of aftermarket parts. Best wishes on your project! |
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