Great video! I’ve always cut a bolt down to about .060” short of my target installed height, ground a radius in the head of the bolt(to fit around the spring locating shoulder) and use feeler gauges to make up the difference. It’s not idiot proof, but like anything, a little common sense goes a long way.
@@FastFixRUclips Oh dein Deutsch ist sehr gut 👍 Ich bin gerade dabei meinen Ford FE 390 zu überholen. Hatte 2021 einen 63 Galaxie 500 Xl 4 Türer in Texas gekauft. Einige Teile und eine Roller Cam bekomme ich von Brent Lykins. Ich denke Du kennst seine Videos. Es macht echt Spaß am Motor zu arbeiten. Hoffe er wird in den nächsten Monaten wieder gut laufen. Wünsche Dir einen schönen Tag
Hello. Unless you’re running the air pump and you’ve got the factory smog equipment attached, yes I’d for sure plug the holes. I don’t remember what I used to plug mine, but I know I found something locally…was a common thread size and degree. It’s hard to bring a heavy ass head into the store, but maybe they’d be cool if you did that. Best of luck 👍
Hey im a bit confused i have a sbc 383 im fighting installed height at 1.750 i hear you and comp say plus or minus .020 i have some i can only get to 1.737 is that safe
Hello: if I’m understanding, you’re trying to reach an installed height of 1.750. You’re getting a max reading at 1.737. 1.750 - 1.737 = .013. This is within .020 spec and will work fine. As far as margins go, please check with the manufacturer based on your engine combination. It might be .020 for my setup, but different for yours. Let me know if I’m misunderstand. Thanks,
@@FastFixRUclips okay gotcha so all valve springs should be a +/-.020? I called howards and asked them and all they said was you want 1.750 but i cant get that exact i know none are gonna be exactly the same. My spring pockets are pretty deep im having to re measure cause last week i was all .010 or less from 1.750 i go to but seals in and its way off how idk but im also goi g from a 1.800 height to 1.750 being i upgraded to hydro roller.
The +\- spec regarding install height is completely dependent on the requirements of the spring you’re running. The springs you have ahold come with instructions on the maximum and minimums regarding install height. If you’re unsure of the requirements, you need to have the springs checked by a shop. They can tell you those properties after testing the spring. Otherwise, you’re risking a lot by guessing what install height should be wether it’s your guess or a shops guess. Again, it totally depends on the spring. Hope this helps. It can be tricky, but getting it right is important.
Hello. No, they were matched to the cam. Stock springs would not work in this application. Always make sure to use springs matches to your cam/rocker arm combo. Thanks for the question!
Man, i was hopping someone would tell us where to get or match good valves and retainers to replace the junk once. Im tempted to just get alloys for the time spent porting and then cash, whats the point.
I agree. Porting these heads has little to no value IMO. Sure you get better flow, but for the money and time spent, just pony up for some AFRs and really go fast. Not sure what you mean by junk retainers and valves. The stock stuff is perfectly fine for these heads. You can get Ford Racing or a different brand valves and retainers but you’ll be paying a lot for them. Not worth it for these heads. IMO.
Those retainer locks with different groove keys are new to me, thanks a lot!!
Hello. Yep, it was for me as well! You’re welcome 👍
Thank you for this video. Just did the tfs valve spring upgrade on my 3 bar heads and this was perfect information
Awesome, glad to hear it. 👍
Great video! I’ve always cut a bolt down to about .060” short of my target installed height, ground a radius in the head of the bolt(to fit around the spring locating shoulder) and use feeler gauges to make up the difference. It’s not idiot proof, but like anything, a little common sense goes a long way.
Absolutely!
What a great video! Thank you, so much!!!
Glad it was helpful!
Thanks, very good video. Greetings from Germany
Hallo. Ich hatte zwei Jahre Deutsch im College. Schön, von dir zu hören. Thanks for the comment and I’m glad it helped :)
@@FastFixRUclips
Oh dein Deutsch ist sehr gut 👍
Ich bin gerade dabei meinen Ford FE 390 zu überholen. Hatte 2021 einen 63 Galaxie 500 Xl 4 Türer in Texas gekauft. Einige Teile und eine Roller Cam bekomme ich von Brent Lykins. Ich denke Du kennst seine Videos. Es macht echt Spaß am Motor zu arbeiten. Hoffe er wird in den nächsten Monaten wieder gut laufen. Wünsche Dir einen schönen Tag
I have the gt40 lightning heads. I’m stumped because there’s no air pump thermactor attached to the back of them. Should I plug anything in that area?
Hello. Unless you’re running the air pump and you’ve got the factory smog equipment attached, yes I’d for sure plug the holes. I don’t remember what I used to plug mine, but I know I found something locally…was a common thread size and degree. It’s hard to bring a heavy ass head into the store, but maybe they’d be cool if you did that. Best of luck 👍
I have GT40 (3bar) heads). Will the stock headers fit or do I need something special? it's an 88 LX 5.0
Yep, stock manifolds will fit. Nothing special required. Thanks for the question.
How much did the machine shop charge you?
I don’t remember off hand, but it wasn’t a whole lot. I’d say $75 to $125.
I have always ground down a piece of rod to desired length and did it that way lol
Hey, whatever works
Hey im a bit confused i have a sbc 383 im fighting installed height at 1.750 i hear you and comp say plus or minus .020 i have some i can only get to 1.737 is that safe
Hello: if I’m understanding, you’re trying to reach an installed height of 1.750. You’re getting a max reading at 1.737.
1.750 - 1.737 = .013. This is within .020 spec and will work fine.
As far as margins go, please check with the manufacturer based on your engine combination. It might be .020 for my setup, but different for yours.
Let me know if I’m misunderstand.
Thanks,
@@FastFixRUclips when you say margins do you mean the spec range as far as +/-.020? Or is that something different?
No, that’s what I mean...the spec range will be the plus or minus .020 is in reference to when I say “margins.”
@@FastFixRUclips okay gotcha so all valve springs should be a +/-.020? I called howards and asked them and all they said was you want 1.750 but i cant get that exact i know none are gonna be exactly the same. My spring pockets are pretty deep im having to re measure cause last week i was all .010 or less from 1.750 i go to but seals in and its way off how idk but im also goi g from a 1.800 height to 1.750 being i upgraded to hydro roller.
The +\- spec regarding install height is completely dependent on the requirements of the spring you’re running. The springs you have ahold come with instructions on the maximum and minimums regarding install height. If you’re unsure of the requirements, you need to have the springs checked by a shop. They can tell you those properties after testing the spring. Otherwise, you’re risking a lot by guessing what install height should be wether it’s your guess or a shops guess. Again, it totally depends on the spring. Hope this helps. It can be tricky, but getting it right is important.
Did you use the valve springs that came with the heads?
Hello. No, they were matched to the cam. Stock springs would not work in this application. Always make sure to use springs matches to your cam/rocker arm combo. Thanks for the question!
Man, i was hopping someone would tell us where to get or match good valves and retainers to replace the junk once. Im tempted to just get alloys for the time spent porting and then cash, whats the point.
I agree. Porting these heads has little to no value IMO. Sure you get better flow, but for the money and time spent, just pony up for some AFRs and really go fast.
Not sure what you mean by junk retainers and valves. The stock stuff is perfectly fine for these heads. You can get Ford Racing or a different brand valves and retainers but you’ll be paying a lot for them. Not worth it for these heads. IMO.