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Old 12-06-2005, 10:06 AM
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5.7 Vortec

My Plan
I'm Starting to Build a pro street 63 Nova 2Dr HT. plan is to be a 5yr project (Ladder Bar Rear frame and a narrowed ford 9", Big Tubs, Roll Cage, 14.5"W or wider Rubber on the Rear, 3 1/2" front Wheels, 4 wheel disc ect. ) I will be running a stock 65 front clip (No Money in my budget for a MII Front End, I can Not see a MII in my future) (including stock front frame, 65 radiator support and 65 fenders, and prob a stock hood at 1st) this is a father son project that is Not going to be a Daily Driver. prob some warm summer nite cruising and some 1/4mi Drag Strip time, like 6 + Xs a yr at the strip. I have A nice 72 stock 4 bolt main SBC std. bore 350 & a built 350Th tranny, the motor I want to build outa the 1972 350cid 4 bolt main is a 383 stroker somewhere in the 425HP 450HP Range. but with this size project (plan is 5yrs to Finnish) I need time to build it and time to save the funds.

My Question is : That I can pick up a complete stock 5.7 vortec 100,000mi motor (I guess you call the factory vortec head 5.7 motor a vortec SBC motor) any way I can pick up this 100,000mi late model motor (the 5.7cid vortec) for $500 to $650 or I can Pick up a 40,000mi 5.7cid motor up for about a $900. my vortec 5.7 plan is a cam change and ditch the efi for an intake and carb, and electric fuel pump Then I could drop this late model 5.7cid motor in the 63 Nova to get the car going in time for his senior prom, and run it a yr or so, or run it till I can build the 383 the way I want. and I thought if the vortec 5.7 worked out for a starter motor we might add a 75 or 100 shot of NOS to the late model Vortec motor Just 4 Fun . then in the end when I pull the late model 5.7 and I will have a set of vortec heads too .


is this a good starter motor 4 the money ? most all the bolt on performance parts I buy will work on or with the future 383 build. can someone give me an idea of what to expect with this motor and a carb & cam combo with the basic performance bolt ons ? with a intake carb and cam and some long tube headers and a strong 350th tranny with a 350 gear ratio ford 9" trac loc or a detroit locker and a ladder bar setup, will this be a fun driver, performance wise [/i] ? this is going to be for a young gear head, so to me it sounds like a Great Idea to Get Him Started, money & HP wise and maybe get him some experience. then when hes ready at the strip, add a 75 or 100shot of nos will this motor take a 75 or 100 shot ? (my theory is, he should respect it,as hes going to be in on 85 or 90 % of everything done to to this build, and in on the financial side of it too)


So is picking the $600 100,000mi motor as a starter motor on my 63 nova project a good idea ? Good Idea as far as Durablty Performance 4 what i'm after ? I will prob run it a yr or 1 1/2 yrs. then try the nos 4 fun, then I should be able to build and drop in my fresh 383 from a older early 70s 350 4 bolt main SBC.

and I will have the vortec heads and intake too for the 383 project or 4 some other build /builds.


Give me your honest in put



Mustangsaly

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Old 12-06-2005, 05:41 PM
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I have been offered a running 1997 V8 Vortec 5.7cid 117,000 mi complete motor for $500 less exhaust manifolds. I was planing on a ZZ4 cam and running this a yr in my 63 Nova, then in a 1 1/2 yr time frame I can have my 383 outa my early 70s 350 4 bolt main block build done. and I will have a set of Vortec Heads for 383 or for my parts stash. what do you guys think of this vortec for $500 and adding a ZZ4 cam intake & carb ? will this stock vortec take a 75 or 100 or maybe 125 shot of nos at the track a 1/2 a dozen Xs a yr ?






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Old 12-06-2005, 06:56 PM
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I'd do it in a heartbeat. Just be sure you have the valve guides machined for the lift of the ZZ4 cam. Chevy sells the LT4 valve springs for ~$35 per set of 16, and the appropriate retainers & locks for another $25 or so. They are a little larger in diameter (1.32"), so the seats will need to be machined, but this can be done when the guides are done. Screw-in rocker studs would be a good idea, but I don't know if they're absolutely necessary.

Another option, slightly milder (203* intake duration vs 208*), would be the LT4 cam, part no. 1255142, which has only .450" lift (with 1.5 rockers), and might not require any head work at all, although new valve springs would be a good idea. This one has no fuel pump lobe, but you said you'd use an electric pump, so that's no problem.

Either way, you'll need an old-style HEI distributor with mechanical and vacuum advance, and you'll need to use the GM "melonized" distributor gear (part no. 10456413, ~$25) for it to be compatible with the roller cam.
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Old 12-06-2005, 07:16 PM
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thanks for the info







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Old 12-06-2005, 08:07 PM
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You are also going to need a front sump pan, amd the corresponding oil pump to fit that chassis. I think moroso has that too to fit the Vortec block.
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Old 12-07-2005, 10:05 AM
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jimfulco, thanks 4 the good info. heres a article. I found a 1 Piece front sump pan. and really these new style vette covers won't look to bad with all my old school stuff, might be other old looking V Covers out there I haven't found yet.







http://www.chevyhiperformance.com/ho...458/index.html



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Old 12-07-2005, 01:18 PM
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jimfulco, thanks 4 the good info. heres a article. I found a 1 Piece front sump pan. and really these new style vette covers won't look to bad with all my old school stuff, might be other old looking V Covers out there I haven't found yet.







http://www.chevyhiperformance.com/ho...458/index.html



Mustangsaly
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