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89Gmcsierra
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Joined: 28 Oct 2012
Posts: 65
Location: Hazleton, Iowa
2274.42 points
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 Posted: Sat Feb 16, 2013 8:10 am Post subject: 383 build up |
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Thoughts Opinions, sold my truck with engine transmission. so fresh start. i want to build a race only lower budget truck. I've found 1989 Chevy S10 with 9" rear-end with 3:73 and posi in it. back halfed with 10 point cage lexan windows. Im not sure if i want to build a high compression engine or supercharged/ turbo. any thoughts which i would be happier with?
my only thoughts are i want 383 with 6" rods and at least a steel crank forged everything else. |
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Paul P
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Joined: 15 Aug 2002
Posts: 2408
Location: Townsend, Mass.
81731.10 points
1971 Chevrolet Chevelle
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| Posted: Sat Feb 16, 2013 9:32 am Post subject: |
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Low budget and supercharged/turbo don't go together. I would build a high compression 6" rod motor. With that light truck it should be a good combination. You can always throw nitrous at it too.
_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi
1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
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89Gmcsierra
Member
Joined: 28 Oct 2012
Posts: 65
Location: Hazleton, Iowa
2274.42 points
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| Posted: Sat Feb 16, 2013 9:49 am Post subject: |
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I have 3 turbo's a master power t70 .96 A/R and 2 ebay cheapys t3/t4 i have the whole setup still for twin turbo on sbc for my gmc but i was using manifolds i would rather build headers for S10 tho.
and the 2000 dollar vortech supercharger is good for 725 horse rating and 22Lbs just have to get the right bi pass valve and pully
biggest thing im scared about high compression having valve Clarance issues.
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clay
Moderator
Joined: 24 Nov 2002
Posts: 3209
Location: South Carolina
318129.23 points
1972 Chevrolet Nova
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| Posted: Sat Feb 16, 2013 8:54 pm Post subject: |
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Lower budget has compression and nitrous written all over it. If you run something like a JE, SRP, Wiseco, Probe, etc. race piston the valve reliefs are usually deep enough the handle most cam setups. I have had problems with the TRW 4 relief forged piston and valve clearance but this isn't really considered a "race" piston. Clay
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I have done so much with so little for so long, I can now do anything with nothing. |
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Paul P
Member
Joined: 15 Aug 2002
Posts: 2408
Location: Townsend, Mass.
81731.10 points
1971 Chevrolet Chevelle
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| Posted: Sun Feb 17, 2013 12:21 pm Post subject: |
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| clay wrote: | | Lower budget has compression and nitrous written all over it. If you run something like a JE, SRP, Wiseco, Probe, etc. race piston the valve reliefs are usually deep enough the handle most cam setups. I have had problems with the TRW 4 relief forged piston and valve clearance but this isn't really considered a "race" piston. Clay |
Now that is a X2 
Good example is the Diamond pistons I have in my 408. Basically 13.5:1 compression .700" lift and over .100" clearance piston to valve. Deep valve pockets are standard on this type of piston.
Food for thought if you get a good race only piston you don't usually have to worry about it. You do have to check it of course.
_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi
1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
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89Gmcsierra
Member
Joined: 28 Oct 2012
Posts: 65
Location: Hazleton, Iowa
2274.42 points
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| Posted: Mon Feb 18, 2013 12:26 am Post subject: |
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| More i look into it. ill have 3K or more in a short block 383 and for 4K i can have fully forged 421 14:1 with 64CC heads with aftermarket dart SHP block Fully machined ready to assemble |
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Paul P
Member
Joined: 15 Aug 2002
Posts: 2408
Location: Townsend, Mass.
81731.10 points
1971 Chevrolet Chevelle
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| Posted: Mon Feb 18, 2013 1:08 pm Post subject: |
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Bang for the buck that may be the way to go.
_________________
2001 Focus 2.0 Zetec
stock cams, bolt-ons and tune
15.63@87 MPH 1/4mi
1971 - Chevelle 408 SBC N/A
6.86@102.5 MPH 1/8mi
10.78@122 MPH 1/4mi
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