text:
|Thread Tools
Daedalus, with the typical SBC dished pistons used in the "smog era" engines and the 64cc heads you will be basically equal to the piston/chamber cc combination of the L31 vortec long block recommended by Oldbogie. It's also equal to the setup used in the GMPP 350 HO (350 cubic inch 330 HP) and CT350 (Circle Track 350 cubic inch 350 HP) crate engines (which both use the L31 vortec heads). You should be about 9.4:1 static CR. Make sure to use a head gasket that will give you about .040" quench. You will have the advantage of a bit larger ports and a little more aggressive cam, so you should have no problem hitting 350 HP. The cam you've chosen will work well with that compression ratio.
1) 986 which are dual springs and 322 lb/in spring rate.
2) 897 also dual springs and 370 lbs/in spring rate.
Since spring #2 is a heavier spring, it will get to you higher RPM's before the lifters (1) pump up and/or (2) loose contact with the cam and explode on return.
You can get the entire "K kit" which comes with the cam, lifters, timing set, springs, spring retainers and retainers, and cheap valve seals (throw them away and use positive seals). Of course this is serious cash. You might be ahead money-wise to get those Promax heads bare and buy valves and positive seals since the K-kit comes with everything else.
Of course your battle is not over with the retro-roller cam. You will need:
So now you see this K-kit is almost $1000 USD, plus all these doo-dads...and now you see why I suggested buying that bare OEM factory roller block for $700 USD! Factory roller cams are cheap and so are the lifters.
Why would you want those heads and for little more then a hundread bucks you can have a set of dart shp 180cc aluminum heads with a set of dual springs already installed for hydraulic roller cams? The dart heads flow just as good as any decent 180cc head and would work perfect with your cam. I am running a similar size lunati voodoo roller cam and with my dart shp heads it runs very strong to about 6 grand and has a nice little lope at idle and is very street friendly and I can churp the tires driving down the highway by shifting from 2nd to third gear in my little s10. That's up to you though and the dart heads are usa made and assembled and where excellent quality and as good as any head I have had. I just checked summit and I guess they have went up a little since I got mine and they are around a grand for a set with everything.
Last edited by eric32; 06-20-2013 at 08:59 AM.
I would buy bare castings,quality valves and solid roller cam with complete kit. I like more power than most people,,,,
With a small solid roller the idle is smoother(generally)has a wider RPM range than any flat tappet or hydraulic roller with similar specs.
so for the following all up im looking at about $2500USD delivered (shipping is the killer, Id have to get each head and the cams/lifters sent individually to avoid import taxes)
cam, timing chain and lifters
thrust button
wear plate
dart heads
head gaskets
head studs
brass distributor gear
as for timing cover ill probably just get the TIG out and reinforce the stock one.
plus roller rockers, there's already some on the motor, Ill have to check the ratio see if i can reuse them.
seems like a decent price for what im doing.
but then again, I can get a GM vortec crate motor (330hp 380ftlb) for the same price, less maybe like $1k-1.5k if i sell my current complete motor...
and id have it in the car in a day.
damn decisions..
Last edited by Daedalus; 06-20-2013 at 06:59 PM.
for less than 6k you can buy a 415 HP/425 torque 350 from a great crate engine dealer,runs on 87 octane
wrong place to advertise
unfortunately 6k is above my budget, I still need money for paint.
im thinking it might be an option to just buy a vortec crate motor, and put the cam i previously mentioned into it. because its factory roller cam block, I wouldn't need to change much would I? just cam and valvesprings? assuming the factory vortec heads can handle the 0.502 lift.
Keep in mind that the valve guide boss on a Vortec is .845". Instead of using an inner damper spring, engineers relied on this tight fit to damp any oscillations and spring surge with a tight fit inside the spring. Up until the Vortecs, the boss was .785"...so if you go to a dual valve spring, be sure you verify the inner diameter of the inner spring. If needed, you can have a shop machine the boss diameter down to accept a smaller ID, as well as a larger OD outer spring.
This is a pretty good place to start reading on Vortecs.
There is also a section in there about the costs of switching to Vortecs.
You said time was important and cost of shipping multiple orders,,,
Thats why I said to get the 415 HP crate engine,(comes with shp heads,retro roller and a warranty)
I would seek out a GM roller block if there are any good cores where you are;
look for a 3.62 stroke crank x 4 inch bore
used roller lifters,the shops here have buckets of them for scrap,gotta be a good set somewhere,
rebuild the short block stock,use good pistons rather than rebuilder pistons,
align hone/square/deck the block,
heads would be either dart shp/edelbrock e-tec or w/e is best bang for the buck
If you think iron heads are better for the Harry Handcuff problem,then dart has a good couple castings(sportsman)
probably use O.E.M. valves or other decent valve,not chinese.
I would use a .480-.500 lift roller cam,duration and lda to be determined after heads are located and CR figured.
not sure how much you will save in cash and Im sure the time would add up fast and soon bother you?
I would still want north of 400 hp
QUESTION: if the engine you build has a lumpy idle and aluminum heads,is that going to be an issue?,reason,
I figure if you use iron heads,a little less CR and a wide displacement angle cam,you can still get 400 hp and almost smooth idle,running on mid grade fuel.
engine will need headers and good exhaust
The play that is left over is the safety margin.
first up let me say I appreciated all the help so far, thanks guys.
ok now so I did a bit more to try and figure out what is going on with this engine.
I got a borescope and inspected a couple of the pistions through the sparkplug hole, the pistons are actually flat tops, and have quite a large valve relief, and there is some sort of pitting or carbon build up ontop of the pistons? is this bad? or because its zoomed in it might look worse than it actually is?
the picture shows the part of the piston top with the cuts for valve clearance.
pic1 that dimple thing is the center of the piston top, and you can just see the cylinder wall top left.
the pictures are **** as its a USB borescope on my laptop, but the video card is crap so it wont capture, hence I had to take a photo of the screen with my phone.
the motor makes 160psi (dry) across all 8 cylinders, and shows evidence of rebuild at some stage (block has been skimmed / machined down till the engine number is barely visible), it runs ok but has a very slight misfire, no smoke or audible detonation.
I guess the best thing to do is pull the heads and inspect it further?
I'm a ford guy but maybe this can help. On my '95 mustang Gt, I swapped the 5.0L for a 393 stroker. It had 10:1 compression, AFR-185 heads, 226/226 @ .050" cam, and a ported intake. It made 365 RWHP and had no issue passing California emissions. That very motor with 8.25:1and 10 pounds of boost from a vortech S-trim made 560 rwhp and burned cleaner than the factory 5.0L.
|Recent Hotrodding Basics posts with photos
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|Thread Tools
|Similar Threads
|Thread Starter
|Last Post
|Muscleing Up a 350 Vette Smog Engine
|345 desoto
|Hotrodding Basics
|76' 350 Low Comp Smog Motor - ?'s
|350 emmision/smog?
|smog diagram 78 chevy pu 350 engine
|smog, smog, smog....CA smog , failed.


text:
As the world struggled to make sense of Robin Williams suicide, a friend asked stand-up comedian Kermet Apio if it's true that comedians are sad people. This was his answer.
Are Comedians Sad? A Stand-Up Comic's Response
The Will Ferrell Story That Will Change The Way You Feel About Following Your Passions
This Hilarious Video Knows What People Without Kids Don't Know
Young Comedian, Kevin Breel, Tells of his Struggle with Depression and Societies Unwillingness to Confront It (Video).
"No one has ever responded to a comment like 'Shut up, F*ck-face!' with a sincere 'Ah, I see your point now.'"
Donald D'Haene DISHes with Comedian Elvira Kurt
Book of Job
Why Gilda's Club Matters – And What I Want You To Do About It
Sarah Silverman on Reproductive Rights: It's a Nonpartisan Issue
Blue Collar Comedy: Andre McSween [Video]
The Good King of Comedy: Our Tribute to Zach Galifianakis
Zach Galifianakis's brother used to strip him down and drag him across the lawn, holding him by his ankles so passing cars could see his naked, pubescent body. But Zach didn't mind. It's this kind of nonchalance toward trauma that sculpted the good man I think should be the new king of comedy. Galifianakis is […]

subset: commoncrawl


text:
See the American Idol contestants (Siobhan! Casey!) and the stars (Demi Lovato! Josh Holloway!) they resemble
Credit: Nino Munoz/PictureGroup; Lionel Hahn/Abaca
Updated: Tuesday Apr 20, 2010 | 11:00 AM EDT
More from PEOPLE
See More News
Skipping gorilla juiceheads for the A-list, the Jersey Shore star makes the rounds
See Photos
2 of 8
Long blond hair? Check. Scruff? Check. He-vage? Big check! The bluesy Texas singer and Josh Holloway could be long-Lost brothers.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.


text:
The Detroit News reports that former Chrysler CEO Bob Nardelli believes that the Obama Administration didn't need to hand the automaker to Fiat in order for the company to continue on. Instead, Nardelli says that a private equity firm could have easily taken the reins and steered the company back toward success. As you may recall, Nardelli left Chrysler in 2009 after the private equity firm Cerberus was forced to loosen its grip on the company. We don't need to elaborate on how well that whole experience went for Chrysler. Cerberus purchased the automaker from Daimler in 2007 for $7.4 billion and later lost its stake in the company during the Chrysler bankruptcy proceedings.
Nardelli says that Chrysler would be doing just fine right now if Cerberus had been given the same deal that the U.S. government gave Fiat. The former executive then went on to say that there was no reason for Chrysler to be given to Fiat, and that the deal was all "all theater and no substance." To our ears, considering where Nardelli and Co. left Chrysler, this all sounds quite a bit like a wounded ego at work. To be fair, though, the former Home Depot exec did bring a fairly salient point to the discussion by reminding that Fiat has largely been credited with Chrysler's more recent successes – despite the fact that much of the progress was already set in motion by Cerberus before the implosion.