B3422w5
Well-Known Member
Thanks for that. What is the poster that works at Crower’s handle on here?
Can there be problems with head gaskets blowing when they are considerably thicker? It makes sense to me that since there's an increased space that's not solid metal this could be an issue. I've read all the pictured books, still learning. What I don't want to do is buy a set of heads just to find out I can't get to a CR that will allow me to run pump gas etc. or have a street engine. These are new heads but what I'm hearing here is closed chamber is closed chamber, guess I'm too concerned with what the manufacturer is saying.
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I can’t remember at the moment.Thanks for that. What is the poster that works at Crower’s handle on here?
Oh, thats right. Even more impressive. When did you get the Indy’s
Not if it is designed for it. IF the gasket company makes a .080 gasket, they designed it to work.
The manufactures have different specs and out looks as compared to high performance companies, race houses and teams. The manufacturer has to meet longevity, emissions and such concerns the general John Q. Public doesn’t want to contes or deal with ever.
Once you get into modifications for more power, beyond the factory components, some issues can crop up that were never introduced to the working parameters of the stock engines.
To use a (very) thick gasket, I suggest going to Cometic for your gaskets and pay the price. I am currently using .100 thick head gaskets on the wife’s car. (The very last person you want to hear whine, complain, *****, and point a finger at yourself with!)
Further back in time, I had a very high compression 360. Then came disater with the everyday car and a NEEDED my hot rod retuned for daily useage.
I ordered up MP’s cylinder head gasket steel shim and used a pair of gaskets in each side to drop the ratio like a rock for 87 octane. It was used in a 80 mile round trip commute for about a year without issue.
You may have to elongate the intakes holes to bolt it on. Also, if it’s a radical height added, thicker intake gaskets.Thanks. Can I ask what that does to the intake alignment? I understand that milling the intake must happen when shaving the block, does or can "raising" the head up create fitment issues?
It's not the only way to do it but quench flat out works on a street engine real well by allowing you to run higher compression and pump gas. My 408 iron headed (EQ's) is 10.03 to 1 and has no problem running on 92 octane. Correct me if I'm wrong but I'm guessing that in your race car you had a bunch of compression and probably ran race gas thus quench wasn't a big deal with your comboSome guys get a little to carried away with stuff they read in books (quench) and say that's the only way of going about something. I had the 340 open chambered Edelbrock heads on my 408, flat-top pistons, a deck that was never touched, and a 1008 Felpro gasket and even after the bore was shot from 3 rebuilds and in need of its fourth it ran 9.70's in my Duster and 10.08 in my Sons Duster in Summer heat at Keystone Raceway Park, Pa at 3200 pounds.
It's not the only way to do it but quench flat out works on a street engine real well by allowing you to run higher compression and pump gas. My 408 iron headed (EQ's) is 10.03 to 1 and has no problem running on 92 octane. Correct me if I'm wrong but I'm guessing that in your race car you had a bunch of compression and probably ran race gas thus quench wasn't a big deal with your combo
Well doneMy 51027 Diamond pistons were advertised in the 11.1 area at zero deck (flat-tops) and like I said I wasn't at zero deck. Plus i always open up my chambers some to help flow. That engine ran 10.0's with BP93 pump gas. Then I wanted to play with a set of Econo W2 heads I had sitting here so I threw one on my flowbench and it maxed out at [email protected] lift and then fell on its face. I didn't spend a lot of time porting it and stopped at 305@600 concentrating on low lift numbers because I only had a 520 lift Racer Brown cam in it. Being that engine had a cast iron head I ran 4 gallons of 93BP and one gallon of 110 race fuel for safety and it ran 9.80's. Now I run alcohol so I will be stepping up compression on my future builds with strictly aluminum heads.
Thank youWell done
Whoa! Way incorrect!!!! 2.02 + 1.60 + room around the valve.I read somewhere that the so called "Trick Flow" head has a minimum 4" bore requirement
Amen on there “hopeful” good quality in there OOTB state. IF they flow as well as they have advertised, that is about the level of a ported W2 head. Then an adventurous person will have to start porting them. It will be interesting to see where the head porters end up. I don’t see it getting to a W-7-8-9 level at all.hopefully they are as good as cnc'd brand x out of the box and not take a lot of blueprinting- but we'll see
as good as W2-W9 OTB?
Whoa! Way incorrect!!!! 2.02 + 1.60 + room around the valve.
See below!
Amen on there “hopeful” good quality in there OOTB state. IF they flow as well as they have advertised, that is about the level of a ported W2 head. Then an adventurous person will have to start porting them. It will be interesting to see where the head porters end up. I don’t see it getting to a W-7-8-9 level at all.
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I don't care if they are shipping right away this month, I just want to know how expensive they are going to be. Trying to decide whether to go with a set of W2 heads for my 340 and if these flow as well as that table shows my decision will be made, as long as the cost is reasonable and they don't require $1500 rocker sets.