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Old 12-05-2004, 10:16 PM
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what would be a better setup for a 350

i have a 68 chevelle malibu with a rebuilt 350, casting # 3970014 and a th400 tranny with a stage 2 shift kit and stock gears. I am putting some parts into it this winter and i was thinking of a good combination. I emailed summit because they seem to have lots of cheap parts, I was thinkin of an edelbrock performer eps intake and a summit, k-1103 cam Cam/Lifter Kit, Hydraulic Flat Tappet, Multi-Use, 214/224 Duration @.050, Chevy Small Block, Gen I and a torque converter Torque Converters, Tork Master, 2000, Chevy, TH400, and headers, but i was wondering if anyone would know of a better combo??

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Old 12-06-2004, 10:05 AM
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what are you going to be using it for?

Do you want insane tire-melting low end torque, or top end screaming power?
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Old 12-06-2004, 01:10 PM
 
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yeah. a bit more info would be useful. and is this going to just be your toy and weekend cruiser? track car? or daily driver?
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Old 12-06-2004, 05:14 PM
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i want to be a daily driver, nothing too crazy, but i wanna be able to roast some imports. i was thinkin around like 350 horses,
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Old 12-06-2004, 05:18 PM
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What are the full specs on the cam you are going to use? We need more than just duration. We need lift and LSA as well . What type of carb? What type of exhaust? More to headers than just . .headers lol.
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Old 12-06-2004, 05:38 PM
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Basic Operating RPM Range 2,000-4,500 RPM
Intake Duration 050 inch Lift 214
Exhaust Duration 050 inch Lift 224
Advertised Intake Duration 272
Advertised Exhaust Duration 282
Intake Valve Lift with Factory Rocker Arm Ratio 0.442
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.465
Lobe Separation (degrees) 112
Intake Valve Lash (in) 0.000
Exhaust Valve Lash (in) 0.000

the exhaust are 2 inch with 2 18 inch cherry bombs

carb is a holley 650 from a 85 ford mustang cobra,
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Old 12-06-2004, 05:50 PM
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Headers, 2 1/2" pipes, Flowmasters.

Look at some 3.42/3.55 gear ratios for a daily driver and 3.73/4.11 for a race car. Gears will make gobs more torque meet the pavement.

You cam looks small. Look for something with around .480" lift, 110-112 lobe seperation if... you have flat tops or high compression heads. What pistons and heads?
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Old 12-06-2004, 05:54 PM
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im really not sure, the engine was rebuilt by GM, all i know is the casting number on the engine. i know that the heads are from the stock 68 307, other than that im not sure? sorry
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Old 12-06-2004, 05:56 PM
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Did you put the heads on? if so do you remember the pistons shape, flat or dished on top?
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Old 12-06-2004, 06:00 PM
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no my mechanic did, i think they would probably be flat wouldnt they? I am really wishing i did build the engine myself but at the time i didnt really know enough about the car. I am eager to tackle the project with a close friend. I will be ripping the engine apart and then i will know forsure but that wont be for about a couple more months, do u have any suggestions for either piston style
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Old 12-06-2004, 06:10 PM
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With out knowing more it is hard to say.

I suspect 307 heads will be lo-po. If that's the case look for a

450-470" lift cam and 112-114 degrees of lobe sep.

or a better set of heads. I think TurboS10 may have a good set that may just be right for you.
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Old 12-06-2004, 06:40 PM
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turbos10 eh?, well i dunno if my budget can handle that? but if i could get a $ figure that would be ok. Maybe if there is anyone who would want a set of 307 heads? or intake or brand new carter 2 barel carb, i also have an aluminun powerglide that was rebuilt by a transmision shop here in saskatoon, i would be willing to sell some stuff

if the heads are low pro as u suspect how about this cam: Cam Style Hydraulic flat tappet
Basic Operating RPM Range 2,200-5,200 RPM
Intake Duration 050 inch Lift 224
Exhaust Duration 050 inch Lift 224
Advertised Intake Duration 282
Advertised Exhaust Duration 282
Intake Valve Lift with Factory Rocker Arm Ratio 0.465
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.465
Lobe Separation (degrees) 114
Intake Valve Lash (in) 0.000
Exhaust Valve Lash (in) 0.000

Last edited by malibu68; 12-06-2004 at 06:40 PM.
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Old 12-06-2004, 06:56 PM
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You get too big on that cam your gonna have to do some spring work on those old 307 heads. If it were me and i was looking for some good cheap power and I always am. This is just my take on things + i used this set up once and was very happy. Take the top end off sell it for whatever I could get. and buy a set of vortec heads, Comp cams 280H magnum cam and lifters. the stock springs can handle up to .480 lift Get the matching performer rpm intake,and a 650vac sec carb. 2400 stall. and a set of 323 or 355 gears. And a set of 1 5/8 " headers. I put all these same parts on a bone stock 327 and a fat arse 80 camaro with 373 gears and the car ran in the low 13s all day.Good luck
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Old 12-06-2004, 07:01 PM
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thanx, i dont think i can afford heads but i will go for a smaller cam, i was really thinkin of a summit cam because of their price, my whole setup is on a budget. i will also put in mid 3 gears in the rear too, thanks alot, ooh and summit told me which springs match the first cam SUM-K1103
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