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a couple smallblock questions. #1460034
06/29/13 07:59 PM
06/29/13 07:59 PM
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1Fast340 Offline OP
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how much valvelift can the smallblock edelbrock rpm heads handle before having to cut the guides?

how much lobe lift is safe without uncovering the liftergalery oiling with the comp #8043 rollerlifters in a stockblock 340?

How much compresion can the Felpro#1008 headgaskets handle with the help of cylinderheadstuds?

the plan is to use the Scat #1-48013 stroker kit wich if i mill the openchamber edelbrockheads can give enough compression to be a good choice for E85 or just run it with the big chambers on pumpgas and a crane #698801 solid roller camshaft with 260/266@.050lift and .630lift,i think it could be a real fun street/strip combination,whats your opinion?

Re: a couple smallblock questions. [Re: 1Fast340] #1460035
06/29/13 08:28 PM
06/29/13 08:28 PM
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bean town ....Ca
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WHITEDART Offline
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Quote:

how much valvelift can the smallblock edelbrock rpm heads handle before having to cut the guides?

how much lobe lift is safe without uncovering the liftergalery oiling with the comp #8043 rollerlifters in a stockblock 340?

How much compresion can the Felpro#1008 headgaskets handle with the help of cylinderheadstuds?

the plan is to use the Scat #1-48013 stroker kit wich if i mill the openchamber edelbrockheads can give enough compression to be a good choice for E85 or just run it with the big chambers on pumpgas and a crane #698801 solid roller camshaft with 260/266@.050lift and .630lift,i think it could be a real fun street/strip combination,whats your opinion?


what stroke is that crank I have seen many 12.5 + running 1008 head gaskets with good bolts


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: a couple smallblock questions. [Re: WHITEDART] #1460036
06/29/13 08:43 PM
06/29/13 08:43 PM
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1Fast340 Offline OP
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Quote:

Quote:

how much valvelift can the smallblock edelbrock rpm heads handle before having to cut the guides?

how much lobe lift is safe without uncovering the liftergalery oiling with the comp #8043 rollerlifters in a stockblock 340?

How much compresion can the Felpro#1008 headgaskets handle with the help of cylinderheadstuds?

the plan is to use the Scat #1-48013 stroker kit wich if i mill the openchamber edelbrockheads can give enough compression to be a good choice for E85 or just run it with the big chambers on pumpgas and a crane #698801 solid roller camshaft with 260/266@.050lift and .630lift,i think it could be a real fun street/strip combination,whats your opinion?


what stroke is that crank I have seen many 12.5 + running 1008 head gaskets with good bolts




its a 4" stroke crank,the pistons in the kit would give me a compression around 11:1 with the heads the way they are right now but would easily be a 12:1+compression motor with just alitle milling of the heads.

the options are either

#1 pumpgas, single carb on singleplane manifold or two edelbrock carbs on a tunnelram
or
#2 E85, dominator on singleplane manifold

Last edited by 1Fast340; 06/29/13 08:44 PM.
Re: a couple smallblock questions. [Re: 1Fast340] #1460037
06/29/13 09:18 PM
06/29/13 09:18 PM
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Crizila Offline
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Quote:

how much valvelift can the smallblock edelbrock rpm heads handle before having to cut the guides?

how much lobe lift is safe without uncovering the liftergalery oiling with the comp #8043 rollerlifters in a stockblock 340?

How much compresion can the Felpro#1008 headgaskets handle with the help of cylinderheadstuds?

the plan is to use the Scat #1-48013 stroker kit wich if i mill the openchamber edelbrockheads can give enough compression to be a good choice for E85 or just run it with the big chambers on pumpgas and a crane #698801 solid roller camshaft with 260/266@.050lift and .630lift,i think it could be a real fun street/strip combination,whats your opinion?


Pretty sure you will be cutting the guides at .630 lift - no matter what seals you use. Second question answer should come from Comp. 12:1 and over I'd be looking at MLS gaskets - even with studs. 1008's will work for a while, but my experience is that they will eventually start to leak. A lot will depend on the cam profile ( intake valve closing / overlap).


Fastest 300
Re: a couple smallblock questions. [Re: 1Fast340] #1460038
06/29/13 09:22 PM
06/29/13 09:22 PM
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bean town ....Ca
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sounds like a low rpm high torque motor my choice would be e85 with 950 hp at 11to1 that way you could change from pump gas to e85 with no problems.. 11 to 1 has work great for us with no problems ..but I would not put to much carb on those heads,,,


In the 8s N/A.with Brett miller W8's
5.07 at 133 at 2700lb
Re: a couple smallblock questions. [Re: WHITEDART] #1460039
06/30/13 04:48 AM
06/30/13 04:48 AM
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Finland
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If everything else is in order ,Fel Pro 1008 can handle a lot of pressure, my w2 engine had over 15-1 and no head gasket problems


-65 Valiant,420", all motor,2700#, dot tires, 8,42 @ 160,2
Re: a couple smallblock questions. [Re: Crizila] #1460040
06/30/13 09:57 AM
06/30/13 09:57 AM
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Atco NJ
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I've run .645 lift with no issues. Ill so changed the strings and retainers and checked after that.

I did have to open the cups up but the depths didn't change

Re: a couple smallblock questions. [Re: DJVCuda] #1460041
06/30/13 02:15 PM
06/30/13 02:15 PM
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1Fast340 Offline OP
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some good input here
and for what its worth these heads are not realy out of the box,they are ported as far as they go with the stock valves. i just like to keep the valveguides stock height for stability.

Re: a couple smallblock questions. [Re: 1Fast340] #1460042
06/30/13 04:23 PM
06/30/13 04:23 PM
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Ya, the longer you can keep the guides the better. A moc-up will tell you what you have to do. Just remember to include the seals in your measurements. I shoot for a minimum of .040 clearance - retainer to seal.


Fastest 300
Re: a couple smallblock questions. [Re: Crizila] #1460043
07/01/13 04:46 PM
07/01/13 04:46 PM
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1Fast340 Offline OP
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good advice here:)

does anyone have any experience with how much lobelift can usualy be used with these lifters and a standard basecircle cam?

i believe these lifters are basicly the same as Brians from IMM

Re: a couple smallblock questions. [Re: 1Fast340] #1460044
07/01/13 07:22 PM
07/01/13 07:22 PM
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North, Alabama
D-50 Offline
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I have the same lifters and my cam is .704 lift before the lash and I have had no issues.


1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
Re: a couple smallblock questions. [Re: D-50] #1460045
07/02/13 03:27 PM
07/02/13 03:27 PM
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Quote:

I have the same lifters and my cam is .704 lift before the lash and I have had no issues.




did you have to run a smaller base cam? or did you tube the oilgalery? thats some serious lift!

Re: a couple smallblock questions. [Re: 1Fast340] #1460046
07/02/13 06:58 PM
07/02/13 06:58 PM
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North, Alabama
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I should have been more specific. The cam has .427 lobe lift and the lifters bores are bushed.The reason it has so much lift is I have 1.65 ratio T&D rockers. I ran them in another motor without bushed lifter bores but had another cam from Bullet that had a smaller base circle. It was .665 lift.

7763215-CIMG0081.JPG (15 downloads)

1.33 60 ft,6.21 at 110.59 in the 1/8, pump gas small block,2950lbs,drag radials,mufflers and driven to track ...
Re: a couple smallblock questions. [Re: D-50] #1460047
07/03/13 01:16 PM
07/03/13 01:16 PM
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1Fast340 Offline OP
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Quote:

I should have been more specific. The cam has .427 lobe lift and the lifters bores are bushed.The reason it has so much lift is I have 1.65 ratio T&D rockers. I ran them in another motor without bushed lifter bores but had another cam from Bullet that had a smaller base circle. It was .665 lift.




i suspected something along those lines. Thanks i appreciate any info i can get







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