Thread: 383 build-Something Caught My Eye

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Pat-the pistons are the ones for me.Given the numbers,and I know you said go 10 down,I think 9.4@ 0 deck is where to go.I don't think I would ever be at w.o.t. while towing anyways and considering the gas price difference of the cheapest to the best pump gas I can buy,I don't mind spending more for the best.

I was thinking of the Edelbrock Air Gap manifold to use with a adapter for a TBI.Some of the 355 V8 Astro guys have used them and say they like them alot.This engine came from a running V8 Astro that I used as a donor.On it was a TBI with 65lb cop car injectors lifted on a stock manifold.The exhaust was already done as well.It is truck cast irons the go to a crossover to a converter to a flowmaster 40 with dual outlets.I am not thrilled with a flowmaster at all and am looking to do something different with that.The Astro's space wise really only allow for shorties headers.I have seen guys use full length ones but by the time they get them in binging them up to get them to fit,it is kind of what's the sense of it because they are that bashed in.For yrs we attended a auction buying parts to sell that was mainly based on circle track stuff.There was cast iron headers I saw go threw there of a class that limited them to the cast iron headers.What they did was there is a abrasive thick gel a company force threw the cast headers to open them up alittle and help them flow better.Like of cheating that everyone knew about,but was a accepted mod.I don't remember the name of that company anymore,but I can contact the guy who runs the auction to get it.I justify using that by saying when you think of all the burn outs,rust outs,and at times warped flanges that leak and as I said,hard to fit headers-I think a slightly ported cast header is what I want to use.

Any thoughts about using a 454 four barrel 950 cfm TBI??.Too big for this?.A mis-match given what we talked about with a intake runner size,manifold,cast headers??.LOL-yeah,I'm not much different than anyone else.I got a voice on one shoulder that is the hot rodder and one the other smart builder for the intended use.I have always respected the heck out of guys that have a car that idles like a kitten and runs like a ape.

I do really like the tq numbers a whole alot.That surely will help move a 4,000lb van in third gear with 3.70's and a 29" tire towing a trailer that is about 2900lbs loaded.

Thanks Pat.

Richard-going to take down this computer late Monday morning to transfer the data to a replacement.I sure have the replacement computer by Weds.

Ttyl.

Wooooooo-new computer I can again post pictures.Might want to cook up some popcorn.I got tons to post.

extrude hone was machines that used the thick past .any intake or tbi you have to watch that it will not kill bottom end. the 454 tbi is what some guys used its a bolt on so if you do not like it bolt a smaller one back on .but like i told you your going to have to go to mass air .your going to have a hell of a time with the Map even with the small cam .i was using intake stock with a spacer that works but you could try the performer EPS intake

Well I am back.Computer swap done.Pistons will be here tomorrow.Free shipping??.Not really.Charge you about 11 bucks for handling.I'll live with it I guess.I do have some stuff I want to cover,but I need to post pictures on other threads first.

Well I got them today.






Looking for a suggestion for the rings that are not a file fit per say.Just to check and adjust to the proper clearance.They are suggesting .0030 to .0045.What do you guys think??.I know Pat said he adds .0002,but as along as we are adjusting them,what should be my target clearance??.

Sorry guys.Pics didn't show.Just please click on the links.

Originally Posted by 1gary

Well I got them today.






Looking for a suggestion for the rings that are not a file fit per say.Just to check and adjust to the proper clearance.They are suggesting .0030 to .0045.What do you guys think??.I know Pat said he adds .0002,but as along as we are adjusting them,what should be my target clearance??.

no that is not what i said. i am very good but not that good were i could set and mesure end gap down to .0002 .rods big and small end . housing bores .cranks. block bores . you bet i do. rings i would use for this build is mahle moly or hasting moly rings and TQ plate the block were the bores come in to real size has every thing to do with ring end gap how much you want to open it up after what you have has alot to do with the.. engine use... adding .003 to .005 more to end gap will not hurt one bit. if ring gaps are on the small side of spec you can run the best money can buy for rings and if you butt them they are junk

Thanks Pat.I found the tq'er series RHS doesn't have a 72cc head.Only 64cc.Kind of makes sense when they are mainly for the later yr multi intake manifold bolt patterns.I am kind of sold on the RHS clean cast teck.So if I where to stick to that brand head,it leads back to the 180cc intake 72cc head.I am looking please into your thoughts about that.

The rods I think I wanted to use are the Scat 4340 forged I-beam with ARP 8740 7/16" capscrews part number scr5a7 and are profiled for stroker use.

They are 595 grams.

The Mahle are $99.00 and the Hastings are $39.99.I'm thinking the Mahle.

Originally Posted by pat mccarthy

no that is not what i said. i am very good but not that good were i could set and mesure end gap down to .0002 .rods big and small end . housing bores .cranks. block bores . you bet i do. rings i would use for this build is mahle moly or hasting moly rings and TQ plate the block were the bores come in to real size has every thing to do with ring end gap how much you want to open it up after what you have has alot to do with the.. engine use... adding .003 to .005 more to end gap will not hurt one bit. if ring gaps are on the small side of spec you can run the best money can buy for rings and if you butt them they are junk

You are that good Pat.I'll send ya some of the clippings next time I go for a hair cut.Each hair is about 0002.That is because if it where more,I would have more hair on my head.LOL.

Honestly,this computer swap has had me worn thin.I know that I can not survive on these forums without a camera and decent computer,but call me old fashion,it doesn't add to finishing the parts I need for my projects.Just puts me in a bad mood in general.So if my thinking is abit south,that is why.

Originally Posted by 1gary

The Mahle are $99.00 and the Hastings are $39.99.I'm thinking the Mahle.

i have used many of both rings the pbm / mahles are abit less do not let the 40.00 ring sets fool you i have them out there with 200.000+ miles on them all my OEM and mild builds i use the Hastings. i am a dealer for scat/PBM . KB . RHS .Mahle . and many more

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Since I can't get the RHS Pro Torqurer heads in a 72cc head and that moves me up to the Pro Action RHS heads that is a 72cc head with a 180cc intake runner part number 12001,how bad of a hit will that make in torque in the lower RPM ranges??.Pat,I am going to go with one of your design cams,do you think for this application a 4-7 cam would help broaden the torque band??.What kind of numbers do you think I would end up with given both items??.

Still looking for opinion of me having using a 180cc runner and how that is going to effect the torque band??.

Should be fine.

It may give you a bit more top end when you take that thing on the strip.

The OEM roller lifters are really limited.My 1995 L31 came threw with the bosses threaded in the valley,but was a flat tappet cam.I am going roller(hyro roller that is)so Comp Cams has a upgrade to the spider lifter retainers and better roller lifters.This is a street towing van that I want to play when the trailer isn't on it.But I doubt it will ever see a strip.So the lower end torque is a sensitive subject.We wanted to go with the RHS 170 intake runner Torquer iron heads,but found they are not offered in a 72cc head.They if they where offered in a 72cc head would have been perfect for my use.I am totally sold on the RHS cast iron clean cast tech,so another brand is out of the question.

Still would like to have a guesstimate what I am losing on the bottom end.........using the 180cc intake runner over the 170cc's.