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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 07, 2015, 12:49:25 AM »
no no cj all good I didn't think that
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 05, 2015, 09:54:16 PM »
lash caps I guess will fix this
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 05, 2015, 09:11:51 PM »
the valves used in my motor are manley severe duty 427 valves pt no 11884 2.190 3/8'' marks in the top of them
all good top shelf parts used
all good top shelf parts used
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 04, 2015, 10:13:34 PM »
trying to find dyno sheet
butterfly effect on top of valve not all of them have this I think you mean by that is a wear indent on top of the valve in the centre where the rocker roller contacts the tip ? yes
I am in nsw
The black box top looks sweet, wouldn't think there is too many in oz
My 63 box is white ,sounds good when running tho lol!!
butterfly effect on top of valve not all of them have this I think you mean by that is a wear indent on top of the valve in the centre where the rocker roller contacts the tip ? yes
I am in nsw
The black box top looks sweet, wouldn't think there is too many in oz
My 63 box is white ,sounds good when running tho lol!!
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 04, 2015, 10:35:26 AM »
Thank you ,I guess I will be changing the dist gear
I think i'll be busy getting all this, new gear, rocker set up etc
While I'm at it should get that crites hood so I can fit a different manifold as well.......
Should play a good tune !!!!!
I think i'll be busy getting all this, new gear, rocker set up etc
While I'm at it should get that crites hood so I can fit a different manifold as well.......
Should play a good tune !!!!!
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 04, 2015, 09:36:39 AM »
453 cu
dist bronze gear was new 6 mths ago but I will check
I think I will look into a set of the t&d rockers
agreed it should have something around that power that is what I was hoping for & with a better manifold n spacer should be approaching the magic 6"s
dist bronze gear was new 6 mths ago but I will check
I think I will look into a set of the t&d rockers
agreed it should have something around that power that is what I was hoping for & with a better manifold n spacer should be approaching the magic 6"s
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 04, 2015, 07:06:02 AM »
Hi yes it was a chasis dyno 12.4 is what was on the screen they said that was where it should be carb didn't even need a rejet all good there
The car would rev to 6000 no problem but power dropped off after say 5200rpm
This is the second broken rocker on this car,1st broken rocker was a dove and it had cast heads on it with same crower solid roller
The second rocker was last w/end 6mth old comp set pt no 1046 hd kit and new alloy top end 6 mths ago crower lifters etc
The heads flow over 300cfm +
The valves have indent/groove where the rollers run on the tip I think that's why they are saying valve float ?
The car would rev to 6000 no problem but power dropped off after say 5200rpm
This is the second broken rocker on this car,1st broken rocker was a dove and it had cast heads on it with same crower solid roller
The second rocker was last w/end 6mth old comp set pt no 1046 hd kit and new alloy top end 6 mths ago crower lifters etc
The heads flow over 300cfm +
The valves have indent/groove where the rollers run on the tip I think that's why they are saying valve float ?
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FE Technical Forum / Re: 428 stroker valve spring recommendation solid roller
« on: March 03, 2015, 09:54:56 PM »
Hi the car has a msd mech advance dist with 6al box, bronze gear used
carb is a qft 950
manifold is edelbrock rpm dual plane should be good to 6500
it snapped the exhaust rocker
lash is 22 exh
20 int
tops of valves small indent on top of stem where roller runs
thinking of lash caps
timing @ 36
someone mentioned the ratio of comp rollers listed as 1.76 when checked was 1.93 ? have you heard of this?
if that was the case would the springs then be not strong enough? only guessing here
carb is a qft 950
manifold is edelbrock rpm dual plane should be good to 6500
it snapped the exhaust rocker
lash is 22 exh
20 int
tops of valves small indent on top of stem where roller runs
thinking of lash caps
timing @ 36
someone mentioned the ratio of comp rollers listed as 1.76 when checked was 1.93 ? have you heard of this?
if that was the case would the springs then be not strong enough? only guessing here
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FE Technical Forum / 428 stroker valve spring recommendation solid roller
« on: March 03, 2015, 07:51:15 PM »
Hi new to this and fe big blocks,purchased a 63 galaxie boxtop with a 428 stroker manual
The car has broken a comp roller rocker,car has diamond pistons +.030 h beam rods,changed top end to edelbrock alloy heads ported restrictors and drains enlarged ,2.19 manly extreme duty valves,comp roller setup ,it came with a crower solid roller specs as follows,dur @50 248/254 651/655 lsa 108 296 du, I purchased all crower new roller lifters, and springs to suit 1.900 installed 212lb seated 560lb open msd & 950qft carb , comp is 11.5;1 trend pushrods also.
I am trying to work out the problem with this , could these springs be too little for this set up?
Had this on dyno and we think must be valve float it only produced 377 hp @ wheels @ 5100?
Currently at a loss with this
I mainly had clevelands over the years and never had these issues
Any idea's would be appreciated
The car has broken a comp roller rocker,car has diamond pistons +.030 h beam rods,changed top end to edelbrock alloy heads ported restrictors and drains enlarged ,2.19 manly extreme duty valves,comp roller setup ,it came with a crower solid roller specs as follows,dur @50 248/254 651/655 lsa 108 296 du, I purchased all crower new roller lifters, and springs to suit 1.900 installed 212lb seated 560lb open msd & 950qft carb , comp is 11.5;1 trend pushrods also.
I am trying to work out the problem with this , could these springs be too little for this set up?
Had this on dyno and we think must be valve float it only produced 377 hp @ wheels @ 5100?
Currently at a loss with this
I mainly had clevelands over the years and never had these issues
Any idea's would be appreciated
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