help w/ 545 stroker and engine components , 9.5:1 pump gas, 600hp N/A

I have a 1990 lx 5.0, i'm doing a 460 swap i want 600hp , a big cam with thats really rough sounding 2500-6000rpm , i have a set of D0VE-C heads ( 75cc combustion chambers ) but heard these wont work for a stroker and would need -22 dished pistons to keep 9.5:1 , please tell me if this 600hp is reasonable for street on pump gas 9.5:1 or even possible which it should be

I have been looking at the following :


d&dautospec.com - 429/460 Competition/Pro Street/Bracket race kit; includes complete D & D motor plate system, custom 7 qt. competition oil pan & pickup, 2” Race type header-individual tubes

compcams.com - compcams xtreme energy 284hr cam, Hydraulic-Street/Strip, 2800+ stall, 9.5:1 compression, lower gears, rough idle 584/588 lift and 284/296 duration, 2300-6500 rpms

summmitracing.com - Weiand hi-ram tunnel intake dual-quad carbs 2500-9000rpm ( probably two 600 cfm if big enough?? )


I have a c6 tranny , 373 gears, illl have a 3000 stall, and want to operate 2500-6500 rpm 9.5:1 compression, this is my first build i have done lots of research im young and still very learning seeing how two years ago i didt know sh$t about cars lol

Whats a good stroker kit for s 545?? i heard eagle cranks are SH$$ty and need to be rebalanced but im not wanting to spends like 1500 for a rotating assembly

how does stroking effect what cam to use??

what heads should i use will D0VE-C work?? or to get them to work cost as much as some aluminum heads??

what cheap aluminum heads would work?

please let me know what u think would be good for this combo open to all ideas and changes u would do to parts i have been looking at above thanks,


~Bret

Check out this link, it should answer many of your questions: https://www.429-460.com/proven-builds-f4/big-block-ford-horsepower-chart-info-gathered-by-djohagin-t121.htm

And rethink the Weiand tunnelram, not practical for your goals.

Nevs wrote:Check out this link, it should answer many of your questions: https://www.429-460.com/proven-builds-f4/big-block-ford-horsepower-chart-info-gathered-by-djohagin-t121.htm

And rethink the Weiand tunnelram, not practical for your goals.

cool thanks this has lots of valuable info , ive seen this chart before them hp ratings for stroker motors or standard 460?

feel free for more imput stilll looking for more info

superfox90 wrote:I have a 1990 lx 5.0, i'm doing a 460 swap i want 600hp , a big cam with thats really rough sounding 2500-6000rpm , i have a set of D0VE-C heads ( 75cc combustion chambers ) but heard these wont work for a stroker and would need -22 dished pistons to keep 9.5:1 , please tell me if this 600hp is reasonable for street on pump gas 9.5:1 or even possible which it should be

I have been looking at the following :


d&dautospec.com - 429/460 Competition/Pro Street/Bracket race kit; includes complete D & D motor plate system, custom 7 qt. competition oil pan & pickup, 2” Race type header-individual tubes

compcams.com - compcams xtreme energy 284hr cam, Hydraulic-Street/Strip, 2800+ stall, 9.5:1 compression, lower gears, rough idle 584/588 lift and 284/296 duration, 2300-6500 rpms

summmitracing.com - Weiand hi-ram tunnel intake dual-quad carbs 2500-9000rpm ( probably two 600 cfm if big enough?? )


I have a c6 tranny , 373 gears, illl have a 3000 stall, and want to operate 2500-6500 rpm 9.5:1 compression, this is my first build i have done lots of research im young and still very learning seeing how two years ago i didt know sh$t about cars lol

Whats a good stroker kit for s 545?? i heard eagle cranks are SH$$ty and need to be rebalanced but im not wanting to spends like 1500 for a rotating assembly

how does stroking effect what cam to use??

what heads should i use will D0VE-C work?? or to get them to work cost as much as some aluminum heads??

what cheap aluminum heads would work?

please let me know what u think would be good for this combo open to all ideas and changes u would do to parts i have been looking at above thanks,


~Bret

That comp cam you listed would seem small if you decide to go to a 545 stroker. The larger the engine is, the larger the cam you can use....to a point.
Probably, since you are going to order pistons anyway, the cheapest aluminum heads for the money are the SCJ heads Lem Evans sells from Ford Racing. They require pistons with the special intake valve notches, but the heads are great straight out the box.

It's alot easier to get 600 hp from a 545 than a 460, so check around for stroker kit cost.

nice i checked them scj heads they are a good price for what u get, i only see 72cc combustion chamber sized scj's that the only size? wouldnt i need a dished piston to keep 9.5:1???
, what would be a good size cam to use with scj heads, performer rpm air gap intake 1500-6500 rpm, ill be running a stall of 3000 in a c6, 3:73 gears , im wanting a really rough choppy idol that "big block sound" probably like 280ish duration with good lift? how does more ci's effect the duration and sound?

superfox90 wrote:nice i checked them scj heads they are a good price for what u get, i only see 72cc combustion chamber sized scj's that the only size? wouldnt i need a dished piston to keep 9.5:1????

With alu heads and depending on your total package, you can go higher on your CR. I believe Jon Kaase went to over 12:1 CR with his P-51's (as cast version of the fully ported SCJ's) on pump gas.

The Pope wrote:

superfox90 wrote:nice i checked them scj heads they are a good price for what u get, i only see 72cc combustion chamber sized scj's that the only size? wouldnt i need a dished piston to keep 9.5:1????

With alu heads and depending on your total package, you can go higher on your CR. I believe Jon Kaasa went to over 12:1 CR with his P-51's (as cast version of the fully ported SCJ's) on pump gas.

i live in salt lake city its a high elevation doesnt this mean i need a lower CR? looks like right now im looking at the scj heads, performer rpm airgap, and the compcams XE284h 284/296 dur and 584/588 lift, with a good 4.5 crank, i beam rods and some forged pistons ( dunno the piston dome or dished amount ) but it look as though scj's come only in 72cc , there are two different scj part numbers but i dont see the difference maybe you can help?
http://www.summitracing.com/search/make/FORD/engine-size/7-5L-460/engine-family/Ford-big-block-385-Series/Part-Type/Cylinder-Heads/Brand/Ford-Racing/Combustion-Chamber-Volume-cc/72/Cylinder-Head-Style/Assembled/?Ns=Rank|Asc

The SCJ-A heads are for a flat tappet or hydraulic roller camshaft application.
The SCJ-B are for a solid roller camshaft application.
The difference is in the valve springs, otherwise no difference.
You would be well served to talk to Lem Evans at B F Evans Ford. He would be far more helpful than some order taker at Summit in my opinion. But it's your money, spend it as you please...

Nevs wrote:
You would be well served to talk to Lem Evans at B F Evans Ford. He would be far more helpful than some order taker at Summit in my opinion. But it's your money, spend it as you please...

X2..... Lem is A-OK and will give you some "good food for thought"

Click on "Portal" at the top and you'll see his phone# and his web address

superfox90 wrote:

The Pope wrote:

superfox90 wrote:nice i checked them scj heads they are a good price for what u get, i only see 72cc combustion chamber sized scj's that the only size? wouldnt i need a dished piston to keep 9.5:1????

With alu heads and depending on your total package, you can go higher on your CR. I believe Jon Kaasa went to over 12:1 CR with his P-51's (as cast version of the fully ported SCJ's) on pump gas.

i live in salt lake city its a high elevation doesnt this mean i need a lower CR? looks like right now im looking at the scj heads, performer rpm airgap, and the compcams XE284h 284/296 dur and 584/588 lift, with a good 4.5 crank, i beam rods and some forged pistons ( dunno the piston dome or dished amount ) but it look as though scj's come only in 72cc , there are two different scj part numbers but i dont see the difference maybe you can help?

With a 4.5 stroke, you can go with a 6.7 inch rod or a 6.8 in. rod. I tried to copy and paste from the Diamond piston catalog but didn't do so well....lol

Here are the 2 part numbers for each to get the lower c.r. you need: I think you would need about -42 to -46cc cc dish to get 9.5 to 1 tho, but you would have to ask a piston company for sure. Looks do-able tho.


4.390.... 4.500.... 6.800 Rod... 1.245.... 524... .990... x 2.930.... -38.0cc ...10.4... 10.2... 10.1... 09024390...P/N 40430*




4.390... 4.500.... 6.700 Rod ... 1.345... 531... .990... x 2.930 ...-38.0cc ...10.4.. 10.2 ..10.1 09024390...P/N 40434


Also, Lem Evans is a Diamond pistons and a Comp cams distributor so he can help you also with the pistons and cam as well as the SCJ heads.

The higher elevation means you can use a HIGHER comperssion ratio.

I'm running a pump gas 545 with darn near 11.9:1 here at approx 500 feet above sea level.

The aluminum heads and the cam are key ingredients to making power and to making a high compresion engine behave on pump gas.

That cam you listed is a good one.....for a 460...... My bro runs that cam in his iron headed 460 and it's great. But WAY too small for a 545.

The solid flat tappet cam in my 545 is 251/ 260 @ .050. It idles great and is really probably kinda small for what we're doing.

Greg

Greg_P wrote:The higher elevation means you can use a HIGHER comperssion ratio.

I'm running a pump gas 545 with darn near 11.9:1 here at approx 500 feet above sea level.

The aluminum heads and the cam are key ingredients to making power and to making a high compresion engine behave on pump gas.

That cam you listed is a good one.....for a 460...... My bro runs that cam in his iron headed 460 and it's great. But WAY too small for a 545.

The solid flat tappet cam in my 545 is 251/ 260 @ .050. It idles great and is really probably kinda small for what we're doing.

Greg

living in salt lake city what compression ratio should i be looking at for 91 octane? we are at 4000 ft here check out this video below the is the sound im looking for

https://www.youtube.com/watch?v=cGsbrp9hjzw

i need a cam for 2800-6000rpm due to 30000 stall, around the same duration as in the video he said its a 262 dur @ 0.50 lift and advertised 306 duration, its a 306S in the video, i want a hydrolic roller or flat tappet NO SOLID

Your probably going to need a solid roller cam to feed this motor....

.

At your elevation 10.5-11:1 should be pretty safe.

Look into some SCJ's (Great Deal right now), P-51's or TFS streets. They are a better investment than Iron heads and will give you future growth if you can swing them $$ wise. The DOVE's will gwt your 600hp goal, but unless you can do the porting your self it gets pretty expensive.

A Flat tappet is the most economical way and will get you to your power level just fine. Just need to strictly follow break in proceedures and make sure you run oil with Zinc and the appropriate additives.

IMO the TR with 4150's is a waste of time, I'd do a Victor and Dominator, but to each his own.