i have a 351w in an sn95 and i stroked it to a 393. i bought world products windsor sr heads that were 64cc new, but they have been milled to 61cc's. i have a lunati hydraulic cam (.496 in .520 ex lift, duration at .050 tappet lift is 224 in 234 ex) i have the lunati hydaulic lifters as well with 1.6 roller rockers. does anyone know what length pushrod i need to use? thanks guys.
351w Guys I Need Help
- Thread starter jnobles06
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rd
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You may have to just mock this up a couple times and see. If you have converted to adjustable rockers, most likely stock length would work. If you have bolt downs, try stock and a Crane shim kit.
Easiest way is to buy one solid lifter, and a very light spring for a valve, mock it up and check. Due to the head milling, possible block milling, most likely stock would be long so the adjustables or shims would work.
Easiest way is to buy one solid lifter, and a very light spring for a valve, mock it up and check. Due to the head milling, possible block milling, most likely stock would be long so the adjustables or shims would work.
Bill88Stang
Founding Member
bluevenom867
I will have images of molesting stuffed animals in
Bill88Stang said:
So are the heads. I believe my TFS Track Heat heads uses a 8" push rod but it probaly different with thous heads.Just buy a good push rod lenght checker I got one for like $30 form Comp Cams.
bluevenom867
I will have images of molesting stuffed animals in
Yeah your cam is really mild both on lift and duration for that motor. it could use 10-12 degrees on both sides IMO. What is your compression ratio with the flat tops. You'll have to post your dyno or timeslip. I'd be real currious as to what kind of power it makes.
as to your push rod question. get a push rod length checker and find out for sure what it needs to be. I wouldn't guess or go by someone elses opinion on what lenth you need. http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=191781&prmenbr=361
as to your push rod question. get a push rod length checker and find out for sure what it needs to be. I wouldn't guess or go by someone elses opinion on what lenth you need. http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=191781&prmenbr=361
bluevenom867
I will have images of molesting stuffed animals in
You probably got 450hp but I wouldn't put any hope in thous numbers.I tryed another program (Dyno SimPRO) and it said my 357 will make almost 460hp with just polised Track Heat heads and a fair hydraulic roller cam (.542Int./.563Ex. 224*Int./232*Ex. 112*LS) w/ victor jr. intake and a BG750 and only 10.5:1 compresion.I know that motor doesnt have 460hp, if it does than im pushing almost 600hp on a 125hp shot of nitrous.You need a bigger cam or you ain't get anything more out of the car.Are you run true flat tops with out valve releaf?How do you think you got 11.5:1 compresion ratio, if you drive it on the street you dont have anywere near 11.5:1 compresion unless your runing 100 octane or more al the time.My track heat heads have a 61cc combustion camber and I got 6cc valve releaf's with a uncompresed gasket of .04 and I only got around 10.5:1, at most 10.7:1.
Michael Yount
Mustang Master
"plus i have flat top pistons so i cant take my lift above .550 "
jnobles - your statement above - what are you concerned about - piston to valve clearance?
jnobles - your statement above - what are you concerned about - piston to valve clearance?
jnobles06 said:
anything above 9:1 will require premium,and 11 or 12:1 will require race fuel(104-110) especially with iron heads(they hold more heat). You cannot figure compression ratio with out knowing how far down the piston is at TDC since every block is different. Dont gamble on piston to valve clearance, this will change with duration,milling of heads,milling of deck,different head gaskets. Mock it up with clay before you assemble it for the final time.
samuraichamploo
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5.0 HOtrain
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