well how many sets of springs will he have to buy for that fast ramp speed he will not hold that heavy valve train down:whacked:Quote:
Originally Posted by Dave Severson
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well how many sets of springs will he have to buy for that fast ramp speed he will not hold that heavy valve train down:whacked:Quote:
Originally Posted by Dave Severson
Ok, I see... Didn't realize they would grenade the springs.... Thanks for straightening me out!Quote:
Originally Posted by pat mccarthy
well i just can not say but if he well go that way the springs will take it all parts need to be light or in time the springs will get killed i would but isky spring s and the lite lifters they haveQuote:
Originally Posted by Dave Severson
the cam my friend dave is telling me to get <irony huh?> is something like.
.512 .515 with a shi*load of duration i can get those specs tomorrow hes sacrificing lift, for the durationt hat will carry it to the top end when i got look at the block and crank they are done yes! and the crank got away with a good polish block was also decked .10 or .12 piston will only be int he hole .10 now. with those big domes i am stressing piston to valve clearance!
Some lightweight components would help it live a little better. Been out of the engine stuff for a lot of years, would like to try some of the newer stuff sometime....Quote:
Originally Posted by pat mccarthy
I suppose duration in the 280 range? Would be close to what my old Henry skinny block liked.... Circle tracking (chebbie 355) we ran .515, think the duration was 282. Ran like gangbusters at the end of the straight, right at 7,000 revs.... car weighed 2550 and a 3 speed trans running in 2nd gear....Quote:
Originally Posted by Dave Severson
on the sand drag stuff i seen stuff hit when it should of never hit cut the seal right off the guids and hammer the top of the guild s with triples the weight and the spring just can not keep up and starts to jump up and down it just can not hold up then bad things hapen
Make sure you use some clay and check the piston to valve clearance, always used .100 clearance as a minimum...... Don't know if that is accurate for a chebbie or not????Quote:
Originally Posted by gassersrule_196
yes 100 works that cam that i posted is very old and it at av282/292
Yup, the heavy valves and pushrods can make things go bang that have lots of clearance!!!!! (Please don't ask me how I know this!:3dSMILE: )Quote:
Originally Posted by pat mccarthy
i belive it is dave. i am stressing it. this guy has been the local john milner type since the 60's 70's used to get big into the high winder stock cars and drag cars, even used to build monster bbc's for tractor pull's hes done a bit of everything i suppose, was telling me he started at a mechanics shops month later went to nam came home and hasnt stopped on the racing motors since,! just slowed down a little bit, you daves have an ironic past huh?
yup them trips i put in the sand drag could hold up a train car ? but harmonics and weight they just could not keep up i have pull them out and were a 1/2 shorter on free :whacked:Quote:
Originally Posted by Dave Severson
considering the busiest racing season i ever had was 5 races im not to worried about stuff as i am not thrashing it every single weekend :LOL: the next motor will have the good stuff, might even be a lil bigger :O oh did i lead on to that "evil" 327 :LOL:
Maybe it's me!!! I haven't seen myself around here much lately!!!!:LOL: :LOL: :LOL: nope, on second thought it couldn't be me,,,he builds chebbies!:LOL: :LOL:Quote:
Originally Posted by gassersrule_196
it is odd, two daves into racing. hell you guys were probably buddies back then ;) :D
WELL JUST HOLD ON THERE IT COULD BE YOUR BETTER 1/2**) **)Quote:
Originally Posted by Dave Severson
ha! :LOL: :LOL:
hey i do have respect for some fords, ive always wanted a 67 ford fairlane with a 406 tri power 4 speed :D
hey i did not say any thing bad about fords:D i work on them just did a really nice 351 C and work on headers and many 9 inch ends
have always used chev 12 bolts call me crazy :o
Good call.Quote:
Originally Posted by gassersrule_196
I had a 67 with a BBC/glide that I bracket raced for two seasons.
Nothing that fast 6.40's but I loved that car.
Both the Ford and Chevy guy's hated me.L.O.L.
:rolleyes: :LOL: ....Unless you have some submissions to the patent office,extended the alphabet or added some more numbers other than 0-9,or made a circle bigger than 360 degrees,Quote:
Originally Posted by 500caddy
I seriously doubt you have any info of your own either:LOL: :p
Just some info for ya 500 cad,the professor at the college that teaches nasa rocket scientists ,has never built a rocket,is not a scientist and is not member of nasa................. :eek: how he do dat ?:rolleyes:
Here we go again.
Let's not start personal attack's on people.
We can all learn a thing or two.
well it is great that you guys think i know something:3dSMILE: i would say i know just somethings . i think real world stuff guys can get more use out of . the theory are getting run over every day by guys pushing . and if they want that they can go any were on the net to find it .i did run very big cams were they said in theory just would not work and did .you can take someone word for it or jump in the deep end and see . there is a price for the learning curve.if your on here and want a engine built by one guy you will have a hard time with that ..your going to get many answers . i would say alot of guys do not need a big cam but there are some hard hitters that will do any thing and will find a way to make it work .it would be great if someone would say hey i never done this BUT i think the theory is good? or someone to say i have done this. i do know. what end of the block to put the cam in. it just did not work for me. a let the guy make up is mind and not to get in the name calling and see the post for what they are. there is alot of people on here that know some stuff.i just do not like to see every beating one another over the head with a bumpy stick. just let the post speak .BUT that is not to say i do not get abit hot when i see a full page of stuff i know just is not right .i try to deal with it the best i can and if it gets to me to much i will just one day stop posting:)
Hey there you ...You just sit in the corner of the room:LOL:Quote:
Originally Posted by erik erikson
O.K.,I WILL SIT BUT I WON'T BE QUITE!!!:LOL:Quote:
Originally Posted by pat mccarthy
OH i think we all know THAT.....:HMMM: :LOL: :LOL: :LOL:Quote:
Originally Posted by erik erikson
WHO KNOW'S,Quote:
Originally Posted by pat mccarthy
MAYBE ONE OF THESE DAY'S I WILL SHUT MY MOUTH.:D
dont do that then i would not turn on the computer:3dSMILE:Quote:
Originally Posted by erik erikson
thats a 406 ford erik!
Quote:
Originally Posted by erik erikson
Gentlemen, there are other threads, you know. . . . .;)
i said id get the specs, here they are for one of the possible choices, .512 .536 duration at 050 262 273
existing cam or one you're looking at?
the one im looking at, already posted one i had in there,. the 1st cam i had i had the oll .493 .512 offroad z cam ran good then, then i switched to the .500 .300 single profile it was ok, but didnt have the top end oomph the other did had more down low.
Trying to lower the compression with a thicker head gasket will undoubtedly make the problem worse as the quench will be totally screwed up. There should be .035-.045 quench if you are going to get the most efficient burn in the combustion chambers.Quote:
First, is the piston 0 decked?? and how far if it is?? a .120 dome is fine with the 68cc holly's or the 75cc afr. the 64cc eddys are pushing is. the cam is fine with the combo but the loss in stroke from the 350 to 327 will lose torque. if you can get 92-94 octane fuel then 10.5 will be fine. because the short block is already togather the worse thing could happen is it wont run on pump gas at full timing. if this happens and i'm 99.9% sure it wont then you will have to pull the heads and put a thicker head gasket on it. companys like flatout, sce, and others make head gaskets in .040, .050, .060, .070. so it's realy no big deal if it's off.it can be fixed. but like i said your fine if you stay 68cc or bigger on the chamber.
My this thread got big over the weekend!
It would be very helpful if people would post their goals for a particular vehicle when asking about engine builds. That way more accurate information can be passed along. It is a waste of time responding in good faith when it is not applicable. Thanks.
got the rings finally WOO HOO assembly tomorrow !!!!!!!!!!!
.512 .536 duration at 050 262 273 what do you think pat, erik, dave ?
that should work
This a great cam to run with a double hump head.Quote:
Originally Posted by gassersrule_196
Don't be afraid to push the comp. ratio over 12.5 to 1.
I would also run a 5,000 stall and a brake.
I would try a Victor with a 1 inch spacer and flowed 650 carb.