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350 build up
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tworls350
I love my Chevy Chevette!
| Posts: 7
| Joined: 08/09
Posted: 08/28/09
12:30 PM
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i have a 4 bolt main block id like to build 400+ hp out of. at what rmp range should i consider for going with forged crank rods etc? also does any one know where i can find out wich heads will work with the cam i have to get an idea of what i need to put in this motor?
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Pontiacman2
Everything in my driveway’s a Chevy
| Posts: 670
| Joined: 01/08
Posted: 08/28/09
01:29 PM
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I would go with forged rods for anything over 6000RPM and the stock crank should be fine up to 6500.
Gm did put out std rods and X-casting rods the X-rods are more heavy duty and with ARP rod bolts they should be fine up to the 6000RPM range.
Professional hi-performance engine builder
Horsepower sells Engines and torque wins races.
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tworls350
I love my Chevy Chevette!
| Posts: 7
| Joined: 08/09
Posted: 08/28/09
01:38 PM
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ya thats what im thinking. my biggest problem i am trying to get through is matching heads cam and intake. do you have any advice?
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Pontiacman2
Everything in my driveway’s a Chevy
| Posts: 670
| Joined: 01/08
Posted: 08/28/09
02:09 PM
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What kind of carb are you running.
Professional hi-performance engine builder
Horsepower sells Engines and torque wins races.
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tworls350
I love my Chevy Chevette!
| Posts: 7
| Joined: 08/09
Posted: 08/28/09
09:14 PM
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i have no idea yet. i have a 4 bolt main block that needs to be machined, thats my start so far. i have a cam from a previous motor i want to use. but im trying ti figure out how much i can get out of it on mostly stock internals to reach around 400hp, if that can be done.
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Pontiacman2
Everything in my driveway’s a Chevy
| Posts: 670
| Joined: 01/08
Posted: 08/29/09
02:28 PM
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What is the specs of that cam you want to use.
Professional hi-performance engine builder
Horsepower sells Engines and torque wins races.
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tworls350
I love my Chevy Chevette!
| Posts: 7
| Joined: 08/09
Posted: 08/29/09
09:49 PM
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468 intake 488 exhaust lift 224 intake 234 exhaust duration
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Pontiacman2
Everything in my driveway’s a Chevy
| Posts: 670
| Joined: 01/08
Posted: 08/30/09
05:59 AM
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Ok for the cam I would go with this one P#LUN-07102LK.
For the heads I would go with these P#SUM-152123.
For the intake manifold either one of these will work fine P#SUM-226010 or edl-7501.
Professional hi-performance engine builder
Horsepower sells Engines and torque wins races.
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