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03-08-2012, 07:58 PM
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#1
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Vortec 350 cam selection?
I recently purchased a S10 with a 305/200-4R in it (very clean truck for a very fair price). Clearly could see it had 5.0 stamped on the block but had no intention of keeping that motor.
I have a very high mileage (250,000+ miles) vortec 350 laying around that still ran very strong. Haven't taken it apart yet but plan on having the crank cleaned, new crank/rod/cam bearings, hope I can get away with just honing and buying rings. I have low mileage LS7 lifters and 1.5 roller rockers sitting around.
Will be having the heads checked out and machined to fit stronger springs.
I don't want to turn this thing past 6,000 RPM. Been eyeing up Comp Cams XR282HR ( http://www.compcams.com/Company/CC/c...?csid=189&sb=2) 230/236 .510"/.520" 110LSA. Anybody have a better cam selection?
Not looking for anything insane since the truck is relatively lightweight to begin with and I am building the Z28. Want to keep the converter stall under 2,500. Figure with a stock bottom end I can squeak out an easy 350hp/350tq at the crank.
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Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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03-08-2012, 08:06 PM
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#2
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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If they are 062/906 Vortecs you probably won't be able to go over .460 or maybe .480 lift without interference issues. That's the achilles heel of the Vortecs.
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03-08-2012, 08:22 PM
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#3
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Quote:
Originally Posted by WildBillyT
If they are 062/906 Vortecs you probably won't be able to go over .460 or maybe .480 lift without interference issues. That's the achilles heel of the Vortecs.
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They can be machined to accept different springs/retainers from my understanding. Most people say they can get them to clear .575" but don't suggest going past .550". Crane Cams sells a kit for $250 (springs, retainers) that is good for .550" but I think it can be done cheaper with LT4 springs/retainers and minor machining.
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Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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03-08-2012, 08:44 PM
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#4
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Quote:
Originally Posted by zraffz
They can be machined to accept different springs/retainers from my understanding. Most people say they can get them to clear .575" but don't suggest going past .550". Crane Cams sells a kit for $250 (springs, retainers) that is good for .550" but I think it can be done cheaper with LT4 springs/retainers and minor machining.
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Yes, you can. You hadn't mentioned that being done which is why I said it. 
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03-08-2012, 08:48 PM
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#5
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Quote:
Originally Posted by WildBillyT
Yes, you can. You hadn't mentioned that being done which is why I said it. |
Thanks for the heads up anyway lol.
I've been doing quiet a bit of research cause I want to get the best bang for the buck on this rebuild. Not looking for anything insane, just a strong DD.
Might just throw the hardened rings in my LT1 build, spray the 300 shot and shoot for a 9 second track car 
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Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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03-08-2012, 08:53 PM
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#6
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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I like the Vortec engine in my Nova. Nothing spectacular, just a 9.7:1 355 with an XE268. Lots of torque, fun little engine.
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03-11-2012, 02:11 PM
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#7
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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how long ago did u buy this s10? my friend sold his to someone in sussex the other day
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03-11-2012, 07:42 PM
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#8
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Quote:
Originally Posted by maroman88
how long ago did u buy this s10? my friend sold his to someone in sussex the other day
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Looks familiar, huh?
When I first looked at it I noticed it was a 305... looks like a truck block and center bolts. He gave me a corvette radiator and flex lite fans cause the radiator was "clogged"; turns out it had no coolant in it. Can't find a leak either. Open diff but it does some fun 1 wheel power slides.
It's in good hands. Have a steal roll pan coming and still trying to get FlippinDaBird to sell his 383 short block lol.
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Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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Last edited by zraffz; 03-11-2012 at 07:43 PM.
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03-11-2012, 09:31 PM
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#9
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Wait, so do you have Vortecs or not?
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03-11-2012, 09:40 PM
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#10
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Quote:
Originally Posted by WildBillyT
Wait, so do you have Vortecs or not?
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Yeah. I have a 250,000+ mileage 1997 Vortec 350. I am in a toss up between a basic rebuild -- praying I can just hone and get rings for the cylinders and then choosing a cam and having the heads cleaned up, screw in studs, and machined to fit a larger cam.
Option 2 is an early style 6.0 vortec (with the longer crank flange) and throwing a carb manifold and msd ignition box.
Option 3 is what I want to do... unfortunately it depends if flippindabird decides to sell his 383 short block or not. Same vortec heads, cam and possibly a 100 shot since I have the spray plate laying around.
__________________
Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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03-11-2012, 10:12 PM
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#11
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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Oh OK. I saw 305 and was wondering. Option 3 sounds awesome.
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03-12-2012, 02:16 AM
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#12
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12 Second Club
Join Date: Aug 2004
Location: Oradell
Posts: 8,368
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hahaha small world! when that kid got that truck it was in really good shape, but he took it away to school with him and then it sat for a few years
__________________
86 Camaro
88 Camaro
95 Impala SS
97 Trans Am WS6
98 Blazer ZR2
00 Corvette
04 CTS-V
07 Sublime Charger Daytona
10 Tahoe SSV
12 Tahoe LT
17 Malibu LT
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03-19-2012, 04:01 PM
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#13
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Went with the CC XR276HR (08-423-8).
Does anybody have a recommendation for springs and studs?
__________________
Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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03-19-2012, 06:43 PM
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#14
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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here's links for the springs they recommend: http://www.compcams.com/Company/CC/c...?csid=188&sb=2
Don't see a mention of what rockers you are planning on using, so can't pick studs out until we know that.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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03-19-2012, 06:48 PM
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#15
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Didn't order rockers yet. Looking to stick with 1.5 rollers. Imagine I will get NSA.
I see the springs they recommend, but the OD of them are too big to fit without machining the heads. Is this usually expensive?
I just dropped the heads off to the machine shop this afternoon, he will call me when he gets them apart.
__________________
Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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Last edited by zraffz; 03-19-2012 at 06:50 PM.
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03-19-2012, 09:24 PM
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#16
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Join Date: Feb 2010
Location: Stillwater
Posts: 822
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Would it be cheaper to get a set of beehive springs (26918), 7 degree retainers (787), and 7 degree race locks (648) for like $280 rather than buy the recommended springs and have the heads machined to fit them?
__________________
Quote:
Originally Posted by LTb1ow
...its cool to like diesels, cause that and pretending to be country is like, hip nowadays!!
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03-20-2012, 04:34 PM
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#17
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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Dunno....ask the shop that has your heads how much it would cost to cut 'em for larger springs. Something like that will only add to their resale value down the road too.
- Justin
__________________
1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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03-20-2012, 05:25 PM
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#18
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Ayatollah of Rock N Rolla / Admin
Join Date: Mar 2006
Location: Parts Unknown
Posts: 12,573
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If you are going to NSA rockers then you should get the pushrod holes taken care of too.
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