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355 cylinderheads
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89Gmcsierra
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Joined: 28 Oct 2012
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Location: Hazleton, Iowa
2274.42 points



PostPosted: Sun Oct 28, 2012 10:21 am    Post subject: 355 cylinderheads Reply with quote

its in c1500 truck 4:56 gears and 3600 stall, not much street driving. TH400 tranny 3400rpm @ 55-60.
alright i have a 9.8:1 with 64cc heads 355sbc speed pro hyper pistons, Callies Compstar 5.7" H-beam rods with Scat steel crank, running CS XE294H-10 comp cam (2800-7000rpm) rpm range, Duration at 050 inch Lift 250 int./256 exh. 110LSA, ran short of funds so i was running factory heads with cheap intake, runs ok till 4500 and drops off, "factory Swirly heads 193" i will go to Vic jr.
Not 100 percent sure what i should be looking for cylinder heads in cylinder heads i was debating on this set.
http://www.ebay.com/itm/271067561020?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

http://www.youtube.com/watch?v=B4THgOl8pJ0&feature=plcp

But better knowledge would help im a young fella 23 this is my first engine build.
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Big Dave
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Joined: 04 Dec 2005
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Location: Tampa Florida
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PostPosted: Sun Oct 28, 2012 10:44 am    Post subject: Reply with quote

Welcome to the SMOKEmUP.

I think they are going to be just what you are looking for to complete your project.

Big Dave
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clay
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Joined: 24 Nov 2002
Posts: 3209
Location: South Carolina
318129.23 points


1972 Chevrolet Nova

PostPosted: Sun Oct 28, 2012 12:13 pm    Post subject: Reply with quote

I'm guessing those heads are based on the Procomp casting. If you search around they're mixed reviews on them. Basically from what I gather if a reputable company assembles them with decent parts they aren't that bad for the money. With all Chinese parts they can be problematic. One thing I have run into is the spark plug threads. Before you install them screw a plug in and check for thread engagement. The recommended plug wound up having several threads in the chamber on the set I worked on. Once carbon accumulates on the threads it could be a problem removing them - especially on aluminum heads. I searched around for a plug with the right thread length (I don't remember what that was though) and when I found one it used the old 13/16" hex and it wouldn't fit down in the counterbore on the head. I wound up making spacers that fit down in the counterbore and used the recommended plug which is a 0.750" reach gasket style as well as I can remember. They fit really tight in the counterbores and I glued them in with ultra permatex and have had no issues. Cam is a little big for the compression you have but you have what you have. You can help that with more initial timing which will probably require doing some distributor modifications. You would probably benefit from locked timing but that would require a start retard. What type of ignition do you currently have? Another thing I see in video is crankcase ventilation. It looks like you have both valvecovers open to atmosphere. One of them needs to have a PCV installed going to the rear port of the carburetor and the other one needs a filter of some sort. You can install a breather direclty in the other valve cover or you can run a tube to the inside of the air cleaner sort of like the factory did on your truck. This will help to remove moisture from the oil and keep the engine in better shape internally - it's a protect your investment thing. Another thing you will have problems with sooner or later if you don't tidy it up is plug wires. Without having them in seperators and secured they will eventually wind up touching a header and getting burned to the point you'll have an intermittent misfire. Airflow from the fan and highway speeds, heat, vibration, etc. will allow them to move - trust me - it happens. Neatness counts and prevents problems as they always show up at the worst time as I'm sure severl others here can attest to. One last question is what carburetor are you running? You've got a good start and you can have a good running 350. Welcome to SMOKEmUP! 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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10sec.et
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Joined: 29 Mar 2006
Posts: 3472
Location: Houston,Texas
346624.78 points


1969 Oldsmobile Cutlass

PostPosted: Sun Oct 28, 2012 1:36 pm    Post subject: Reply with quote

clay wrote:
One thing I have run into is the spark plug threads. Before you install them screw a plug in and check for thread engagement. The recommended plug wound up having several threads in the chamber on the set I worked on. Once carbon accumulates on the threads it could be a problem removing them - especially on aluminum heads. I searched around for a plug with the right thread length (I don't remember what that was though) and when I found one it used the old 13/16" hex and it wouldn't fit down in the counterbore on the head. Clay


NGK has plugs with the "short" threads. i found this out by accident when i ordered the wrong ones. i should still have the part number at work if anyone needs it.

welcome to SMOKEmUP Cheers

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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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squeeezer
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Joined: 02 Mar 2007
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Location: new richmond WI
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1991 Chevrolet Camaro

PostPosted: Mon Oct 29, 2012 1:08 am    Post subject: Reply with quote

Welcome sir
where you from
how much hood clearancedo you have

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10sec.et
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Location: Houston,Texas
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1969 Oldsmobile Cutlass

PostPosted: Mon Oct 29, 2012 1:19 am    Post subject: Reply with quote

squeeezer wrote:
clearancedo



is that spanish ? Confused

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af2 wrote:
It seems we can look at our magical Balls and come up with a fix?

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squeeezer
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Joined: 02 Mar 2007
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1991 Chevrolet Camaro

PostPosted: Mon Oct 29, 2012 10:53 am    Post subject: Reply with quote

Spanglish Laughing
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89Gmcsierra
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Joined: 28 Oct 2012
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Location: Hazleton, Iowa
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PostPosted: Tue Oct 30, 2012 9:53 pm    Post subject: Reply with quote

Currently its 193 heads with ported exhaust ports to my 1 3/4" headers and Weiand Speed Warrior Intake (1500-6700Rpm) carb is 750 mighty demon full mechanical and 2" carb spacer. have Full MSD ignition. old 6A box blaster 3 and 85551 distributor picked all up for 250 bucks came off a Late model ran one season. running 1.5 long slot rockers atm. want 1.6/1.65 rollers with new heads
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89Gmcsierra
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Joined: 28 Oct 2012
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Location: Hazleton, Iowa
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PostPosted: Tue Oct 30, 2012 10:10 pm    Post subject: Reply with quote

I didn't even have the hood on it yet. i had just broke the cam in and had it outside idling all new wires, those didn't like my headers were originally on my engine with manifolds needed 90 degree boots, and i have a PCV hooked up now had to modify the factory tube to go into the air-cleaner and hook up the PCV and wires are all secure. also thought about 59cc instead of 64 get me lil over 10:1 i just want something halfway cruisable in town $8 gallon for 110 octane dont sound fun lol. $4 gallon for 93 octane.[/quote]
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squeeezer
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Joined: 02 Mar 2007
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Location: new richmond WI
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1991 Chevrolet Camaro

PostPosted: Tue Oct 30, 2012 11:39 pm    Post subject: Reply with quote

So.................






You gonna say where you live?
Or should I start guessing?

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89Gmcsierra
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Joined: 28 Oct 2012
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Location: Hazleton, Iowa
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PostPosted: Wed Oct 31, 2012 6:11 am    Post subject: Reply with quote

Ohh Sorry! Hazleton, Iowa
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squeeezer
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Joined: 02 Mar 2007
Posts: 2427
Location: new richmond WI
191524.76 points


1991 Chevrolet Camaro

PostPosted: Wed Oct 31, 2012 11:14 am    Post subject: Reply with quote

Nice cfr is a very local track for you....awsome track

I can help you with your cylinder heads 4 sure

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89Gmcsierra
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Joined: 28 Oct 2012
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Location: Hazleton, Iowa
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PostPosted: Wed Oct 31, 2012 11:34 am    Post subject: Reply with quote

Do you ever come down for Midnight mania? $8 to get in track $20 to run for the night. usually 6-8 a year im there @ everyone of them. you can find me there with O-Town Customz shirts on with Farrah on the back. and look for my pos looking truck lol.
friends run there also 1999 Ws6 trans-am black, 1973 nova primer, 1975 camaro primer. 1992 Lx mustang red procharged. and 1991 lx mustang purple with 70's dodge looking hood scoop.
this last year kept breaking everything. 2 transmissions 700r4 and drive shaft came out of balance. 70mph and u think the worlds gunna end lol. then dropped 2 cylinders last time @ the track. fulcrum on 2 spark plugs gone. last time i do last min shopping @ local parts store. champion plugs only thing they had. fried them.
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Paul P
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Location: Townsend, Mass.
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1971 Chevrolet Chevelle

PostPosted: Wed Oct 31, 2012 11:58 am    Post subject: Reply with quote

Champions are good for lawnmowers only. Laughing I hate them for anything else.
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2001 Focus 2.0 Zetec
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1971 - Chevelle 408 SBC N.A.
6.95@98.6 MPH 1/8mi
10.97@121 MPH 1/4mi
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squeeezer
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Location: new richmond WI
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1991 Chevrolet Camaro

PostPosted: Wed Oct 31, 2012 11:59 am    Post subject: Reply with quote

Id get rid of that hydraulic flat tappet cam
i pm'd ya

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