?how did you get the measurement did you have light weight springs on head and did you check both valves ex and int did you turn motor over by hand  and check the run out on steam does it make roller run in center of valve did you mark valve stem with lip stick or felt tip pin to see wear roller runs at how much off center are you if any How did you check it  Explain were was roller at full lift at center or? It takes me at least half hour to set up and check did you have ind mounted to head to check for full lift. did you look at head or put streight edge down top of valve stems to see if all are set  same height ?

Call terry manton ph 951-245-6565 manton push rods been useing them for 27 years read on web a bout him he is in lake Elisnore Ca 92530 his dad is Noel manton who makes the top fuel rocker arms and springs and he is close to you and always buy one extra if you bend one ore what ever replace and keep going keep in boat at all times it is the best ins you have. and you can  get them there at his shop.

Do it rite the first time and you wont have to do it, after the big noise . Cheaper & Better, short or long push rods cause chipped valve stems and broken rollers. Valves hit piston then what.
      I dont want to scare any one just try to help them

Will look tomorrow for a can if not will have  my son bring some up from Riverside dont worry about heat you have the biggest radiator in the world and you need heat to make horse power , 180=200 temp is fine and most jet don't get 150 temp cold and they make condensation like fast no heat to dry motor out. There like a big water bucket ready to rust 

If you want to see how Big oil controls things search the Fish Carburetor and read how the I.R.S stoped the U.N.S.P service from shipping Fish  Carb. I Had friend in Riverside ho  had one I hope to get it some time he passed away not to long a go. Here is head that I am working now for my grand sons race motor Pro 4 Its a ranger head ford 8 spark plug type EFI head . It has been changed to a carb type see adapter on manifold that we made. Inj have been bulged it will fire 8 plug at one time The head has been angle milled to 45cc and a solid  roller cam set up in place ported & polished big valves . In picture you can see the roller rockers, cam will have towers
machined for roller cam berg . I am building one of these heads for my 79 Mustang Ind pace car 4 Cly Turbo Charged with full boast and Electronic Vara- Jection water Inj with alc this way can run more compression and more boast. It will be a 5 speed car for gas
millage if it works out I will build one  for one of my flat bottom boats I have. I will soon have water inj on 454 boat no shortage in lake water and can force feed large spray from lake to Carb. Been playing with water inj for lots of years Spray bottle to clean polished chambers water
and alc spray over Carb fast idle ruining. cleans carbon of Pistons and chambers best on new motor and new heads to keep them clean

Camp down river on Indian land there is launch ramp it cost $80.00 per year for permit camp all the time you want use your ATVs what ever. Over 60 fish permit Extra $5.00 per year. nice beach no patrol boats. run what you bring lots of fast Boats go there blowen flat bottoms & jets. Camp on the water 3 miles to Avie you need 4x4 to launch but with large  group who cares, Avie rs can float down to camp beach, not to many jet skies down there. lots of beach to set up camp on good time there. camp out with real world bugs,snakes, Blood suckers, SAV and I can go home at night at least I can he may have to sleep in Boat. You can camp Needles to and come up river

Is he going to hog out thoes heads to match your cj tr to?

I use both types on my motor the pressure at motor. Electric at dash, can see both that way I know they are both rite. The sender has to be the rite one for the gauge or it wont work rite. and the wire
size should be rite  from sender to gauge per instrustions , I run solid wire sender to gauge same with temp gauge and tach,  no loas that way

 I started to work in 29 palms in 1947 washed Windows on cars pumped gas by hand in Chevron Station Gas .30cent gal  my dads station, 600 hundred people lived there no Marine base only lizards , snakes and turtles I cleaned shop drained oil from empty cans in bottles to sell my money.
filled pop machine water type, 5cent pop each.  filled water bags each morning be fore school . I hated when the circus came to town they had Chevron credit card and I had to help pump gas up by hand to glass tank and let fill tank. One swimming pool , move show and one bowling Ailey,had to have old hose in bike tires to ride bike puncture vines. killed bike tires. the only
good thing there was Pioneer Days. I don't even drive through there on my way home To Riverside from River. moved to Riverside in 1949 thank god. AND GOD BLESS YOU MARINES

Heads 290 cast 101cc chamber polished large oval port taken to rec port size Les 1/8 as witness line int 7 angle seat cut serdi blade all seat same size same depth all master cut
bowls blended and reshaped valves 45deg with30deg back cut to seat size all valves 11/32 stem int 2.250 ex 1.880 45 deg 30 deg back cut to burnish line. guides bronze replacement 1/2 no junk
guide liners no stone cut seats heads cc and cut on 570 broach all port lay out buy height Gage, valve steams all same length, all springs index and ends ground for true 90 deg set,
heads cc and match cut . Push rods to be indexed and proper roll out on stem. spring to match cam spec, intake rework to head port size heads work from 1500rpm to 6000 rpm small port high port  velocity . will show more pictures later
                                               

i called you # no one there call me 928 763 6942 Elwood

1 .Do you have adjustable rockers
2. Did you turn motor over and check each valve at closed.& open
3. what cam do you have in it.
4. did you check to see if a spring was broke. you some time need a car mirror to
 see back side springs
5  when you turn motor over do all valves close fast and not loosen up like if a guide was tight.
6 are springs matched to cam.
7. are push rods rite length.
8. where valves preset with load on.
9 how were valves set.
10 can you turn valve springs on head with your hand.
11. can you push down on rocker and open valve.
12 Are spring height and seat pressure set to cam spec.
    new used or what. I would go back to river and run motor in water with
one rocker cover of at a time on trailer see how it runs when warm and will give you a better chance
to see what is going on. good luck

Up for auction is a 454 Holley Street Dominate Manifold Polished start your bidding all proceeds go to  the skip fund I am looking to find some ford part to sell to we will see hue
can bid highest if you dont want it resell it on Ebay