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MY 383 build going for tens now !!

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Old 03-02-2018, 05:51 PM   #1  
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Join Date: Jul 1999
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Engine: SOON 383 sbc w/175 shot of NOS
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MY 383 build going for tens now !!



precious



crank is in



nice view of cam and cylinder wall



pistons baby



all most a short block
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MY 383 build going for tens now !!-383block.jpg   MY 383 build going for tens now !!-20140808_224556-1-.jpg   MY 383 build going for tens now !!-cam-card-383.jpg   MY 383 build going for tens now !!-383bk.jpg  
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Old 03-08-2018, 04:51 PM   #2  
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Re: MY 383 build going for tens now !!

Who did the cloverleaf in the top of your intake? I have something very similar from chad Speier.

What is the head combo?


Looks like it will be a runner!

Last edited by AlkyIROC; 03-08-2018 at 05:51 PM.
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Old 03-08-2018, 08:33 PM   #3  
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Re: MY 383 build going for tens now !!

Thanks

The heads were Cast by ALLPRO running 2.08 -1.65 titanium valves

the custom port work on the Heads and intake were done by a good friend of mine from Texas that went to SAM Tech few years back
name is Rick

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Old 03-09-2018, 01:22 AM   #4  
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Re: MY 383 build going for tens now !!

Allpro makes some good castings! Do you have some flow numbers for them?

Looks like dart block?
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Old 03-09-2018, 07:37 AM   #5  
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Re: MY 383 build going for tens now !!

I wish the block was a dart block much better foundation.. this is a 1975 truck Chevy sbc with Howards racing nodular main caps


flow numbers from all pro model 220 sp 23 degree heads done at 28" water


cam lift + Intake,______Exhaust

.500, + + 287.6, ______243.46

.600, + + 308,________ 250.39

.650, + + 312.75,______ xxxx

.700, + + 314.15,______ 252.65

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Old 03-09-2018, 11:12 AM   #6  
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Re: MY 383 build going for tens now !!

Oh don't feel to man, we are running nines on a factory 76 block out of a school bus. That without turning it up much.
They will take a lot as long as the tune up is right.


Dart block will come in due time.

Sounds like we have a very similar block. I had mine machined with Pro-Gram billet mains.

Those are some good flow numbers. It should run well

What does the rest of your valvetrain consist of? You going shaft rockers?

After running shafts they are very nice! I really like mine so far.
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Old 03-09-2018, 02:55 PM   #7  
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Re: MY 383 build going for tens now !!

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Originally Posted by izcain View Post
Oh don't feel to man, we are running nines on a factory 76 block out of a school bus. That without turning it up much.
They will take a lot as long as the tune up is right.


Dart block will come in due time.

Sounds like we have a very similar block. I had mine machined with Pro-Gram billet mains.

Those are some good flow numbers. It should run well

What does the rest of your valvetrain consist of? You going shaft rockers?

After running shafts they are very nice! I really like mine so far.
I want to run a shaft mount setup need to find good set up fair price kind of thing you price out 1.6 stud mount roller rockers , 7/6 studs, stud girdles guide plates etc etc you are looking at $600-800
you can buy a good shaft mount around $1200
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Old 03-10-2018, 12:30 AM   #8  
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Re: MY 383 build going for tens now !!

You can buy them better then that. Pm me and I can send you some contact info for Shelton bars at lgm development. He has some very nice shaft rocker setups for great prices.
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Old 03-10-2018, 12:37 PM   #9  
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Re: MY 383 build going for tens now !!



pistons are in



coming along now cam has been degreed



nice pic of crank and rods

Updates engine is getting close...

by the way I am using Royal Purple assembly lube !!!
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Old 03-10-2018, 03:03 PM   #10  
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Re: MY 383 build going for tens now !!


what crank is that? Beautiful set up its going to run awesome

Dont be so quick to abandon stock blocks they work great with great power, we race a 8500 rpm 355. They usually break when a rod lets go lol.

Last edited by Jacobaxeman; 03-10-2018 at 03:09 PM.
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Old 03-10-2018, 08:06 PM   #11  
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Engine: SOON 383 sbc w/175 shot of NOS
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Re: MY 383 build going for tens now !!

Quote:
Originally Posted by Jacobaxeman View Post

what crank is that? Beautiful set up its going to run awesome

Dont be so quick to abandon stock blocks they work great with great power, we race a 8500 rpm 355. They usually break when a rod lets go lol.

Thanks for the vote of confidence.... 8500 rpm you don't mess around ..

The crank is a piece of work to say the least got it from crankshaft specialties back in the early 2000 had it sitting for years, Recently I had it checked by local machinist found it was under standard and not balanced properly got to pay for it twice

the stock block has hard block in it and will have all the passages o-ringed

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Old 03-12-2018, 02:28 PM   #12  
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Re: MY 383 build going for tens now !!

I have touched the 8200 limiter a couple of times. I don't like doing that though! lol
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Old 09-12-2018, 08:36 PM   #13  
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Re: MY 383 build going for tens now !!

MORE ENGINE **** !!
these are going on the 383....

Last edited by MY-92-RS; 09-12-2018 at 09:02 PM.
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Old 09-12-2018, 09:29 PM   #14  
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Re: MY 383 build going for tens now !!

I use T&D myself. Comp Cams versions but still made by T&D. Either way, a shaft rocker is much better than a pedestal rocker. When I installed mine, it relocated the rocker directly over the tip of the valve. Doing so also moved my pushrods over and I had to modify the pushrod passage through the head so that they wouldn't hit the walls.

I went from this with a stud girdle and tall valve covers and still needing a rocker cover spacer.



To this with shaft rockers and a low profile rocker cover.

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Old 09-13-2018, 11:41 AM   #15  
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Re: MY 383 build going for tens now !!

That is definitely the way to go!! I had stud girdles and all that stuff on my last engine.. Pain in the but.. I like your set up, clean simple get it done; did you have to go to off-set plungers in the lifters??

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Old 09-13-2018, 07:42 PM   #16  
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Re: MY 383 build going for tens now !!

Actually, I was considering it but it's never recommended and not all the rockers would require an offset plunger. Only a couple of the pushrod holes through each head had to be modified. With aluminum heads, it's not hard to shave out some extra metal for the clearance.

There's a lot of metal in these heads. The intake ports have sleeves inserted where the headbolts pass through since the porting goes out into head bolt area.

It took a bit to get the stands all set up properly. The exhaust was pretty straight forward. The intakes needed a taller stand because of the longer valves plus I have lash caps. Once it was all set up, valve train geometry is as perfect as I can get it. Nice thing about shaft rockers is that you can unbolt them to change a valve spring then just bolt them back up without needing to recheck the lash.

Shaft rockers is the way to go especially when your valve train is on the extreme side. My triple springs have an open pressure around 800 pounds. Seat pressure is around 300 pounds. Valve lift is .833/.809 so those rockers and springs get a lot of abuse at 7000+ rpm.

Shaft rockers are just overkill for a street engine but if you have the money to throw at the engine, it sure won't hurt them.
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Old 09-14-2018, 07:07 AM   #17  
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Re: MY 383 build going for tens now !!

Quote:
Shaft rockers is the way to go especially when your valve train is on the extreme side. My triple springs have an open pressure around 800 pounds. Seat pressure is around 300 pounds. Valve lift is .833/.809 so those rockers and springs get a lot of abuse at 7000+ rpm.
​​​​​​​thats it? I figured you would be mid lower 300’s seat and 900-1000 open depending on the lobe
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Old Yesterday, 04:26 PM   #18  
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Join Date: Jul 1999
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Car: 92 CAMARO RALLY SPORT
Engine: SOON 383 sbc w/175 shot of NOS
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Axle/Gears: STRANGE 12 BOLT 3:90 SPOOL


Re: MY 383 build going for tens now !!

we are a short block now !!
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Old Yesterday, 04:36 PM   #19  
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Engine: SOON 383 sbc w/175 shot of NOS
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Re: MY 383 build going for tens now !!




Top end !! heads , valves springs !!

Last edited by MY-92-RS; Yesterday at 04:38 PM. Reason: cause
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Old Yesterday, 04:42 PM   #20  
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Re: MY 383 build going for tens now !!

Looks great!
I think i'm losing another #509 400ci block. Can't seem to keep cam bearings in it. Even had it fixed at Tim Wilkersons shop with his cnc equipment. Oh well, time for an aftermarket block.
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