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#21
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#22
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Dunno, it MIGHT be 64, if you look at it long enough and that would make a little more sense. Especially if they put the large valves in the 15. But why not finish the job with screw in studs? Unless the 1 photo was taken mid-build prior to studs? You might be able to see through the holes in the valve cover if one, both or none have screw in studs. A 62 would have screw in studs for sure. Attached is a pic of a 64 I swiped from ebay, apologies.
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65 Tempest, 400, TH400 86 Fiero SE 2.8 |
#23
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64s I believe have screwin studs.Tom
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#24
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Dam, missed that it is a 455 Crank, and in the lifter valley it looks like it may be a 8 cast in there?
Yes 64 heads castings have screw in rocker studs.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#25
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What would be the best heads to get for my engine on a budget build?
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#26
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I used a stock set of 48s with dished pistons for 9.5 CR.I think any big valve heads with screwin studs could work with dish pistons.There are other heads with bigger chambers that would also work.Tom
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#27
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#28
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I would not trust heads for "done" heads on Ebay,just me.Tom
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The Following User Says Thank You to tom s For This Useful Post: | ||
#29
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I've got a single 62, well another I was playing at porting but hit water and a pair of take off 15s from a 70 Bonneville -block is in my 78 TA. But they are heavy to ship.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#30
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Head wise it greatly depends on if your buying a set of rebuilt iron heads ready to slap on, of if you will need to send them out for work before you bolt them on, and even initially what the shipping cost would be to just get them in your hands which is not cheap!
You very well might find that you could come within 300 bucks of just buying a new aftermarket D port head when you run the numbers. Iron head wise my first pick would be a set of -4 or 4H heads from the 4X casting line of heads, or the 5 serise of heads with screw in studs, or a 6X casting, and all of these like I posted should have the 4 stamping to provide the compression your looking for to get into the 9 to 1 range without having to mill them but for a .002" clean up. Other iron head casting numbers you maybe able to turn up would be 1971 # 96, 1972 7K3, 7H1 This all assumes that the motor has not been built with dished Pistons of course!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! Last edited by steve25; 12-30-2020 at 07:19 AM. |
#31
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#32
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Opinion
Before this head search goes much further... Need to figure out if the ten year old pics are of the engine that's in the car now.
Has it got a 455 or has it got a 400 that the OP was told that it had? https://forums.maxperformanceinc.com...d.php?t=846990 Clay |
#33
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If it were me I'd go and pull the heads and get some better pics to verify. A couple pics of piston tops will tell us if the pistons are dished. You could also verify engine size if all else fails by measuring piston travel. These steps will go a long way in determining what heads will be your best options.
You said that $ is an issue. At this point( after pulling the heads) you can decide weather the engine will be pulled. It all depends what you want to do with the thing. Those heads you show look like they've been on there for a long time. Any idea how many miles? With two different heads on that thing the whole rebuild may be suspect. Again... your call. Larry |
#34
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I'm going to get the block casting and the other heads casting number this weekend. The motor runs fine, has taken me on numerous 1hr+ rides to and from Atlanta. It's just not what I'd like to be doing performance wise
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#35
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People wouldn't be resorting to guesswork if you wire brush the rust off the center ports and take a decent pic of each head.
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Triple Black 1971 GTO |
#36
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So I got a chance to go through the things, car has matching 62 heads on it and is a 455.
Are 62 heads worth having gone through (finding a machine shop to do it will also be a hassle around here) or just buy a set of 6x from nitemare performance for about 1500$ Also odly enough car has a 3.42 coded rear end but when I jacked the car up and spin the tires to count revolutions in the drive shaft its about a 2.56 or somewhere in there gear. Which now Im thinking is the reason behind my sluggish takeoffs Sent from my SM-N960U using Tapatalk |
#37
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Here are some more pics I took today which can maybe help someone help me.
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#38
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Can you pop the valve cover on the other side and shoot a pic of that?
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65 Tempest, 400, TH400 86 Fiero SE 2.8 |
#39
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Obviously the cylinder head picture posted in the beginning of the thread is different from the last couple of pictures of the 'other' head with the easily seen screw in rocker studs and rockers.
So I need some info on exactly what you are asking for in this thread. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#40
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