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Search found 532 matches

by BigBro74
Tue Jul 14, 2020 10:17 am
Forum: Engine Tech
Topic: Blocking exhaust crossover on cast-iron heads
Replies: 33
Views: 885

Re: Blocking exhaust crossover on cast-iron heads

Thanks for all your replies. It seems like the general consensus is to melt aluminum to fill the exhaust crossovers. I talk to the guy grinding on these heads And he doesn’t have an adequate torch to get the aluminum to melt. Stuffing thick aluminum foil in there sounds easy enough, however, he wan...
by BigBro74
Sun Jul 12, 2020 12:19 am
Forum: Engine Tech
Topic: Blocking exhaust crossover on cast-iron heads
Replies: 33
Views: 885

Re: Blocking exhaust crossover on cast-iron heads

Fel pro 1204 gasket has stainless plates that block this - they work great—no holes- already installed in The gasket
by BigBro74
Thu Jul 09, 2020 9:37 am
Forum: Engine Tech
Topic: Indexing spark plugs
Replies: 23
Views: 775

Re: Indexing spark plugs

I agree with mark -I only do it if there is a clearance issue that can be solved. I do think that back in the day using factory heads there was more to be gained because they had a lower plug position than most aftermarket heads do. To that same thought- I also feel like factory castings are more se...
by BigBro74
Tue Jul 07, 2020 5:20 pm
Forum: Engine Tech
Topic: Heads for a 406 street engine
Replies: 6
Views: 326

Re: Heads for a 406 street engine

Those IK 200s that Eric is offering are perfect for your application- and a very good deal. I like 2.3” mcsa on a 406” deal like you are making.
by BigBro74
Mon Jun 29, 2020 8:07 am
Forum: Engine Tech
Topic: Severe engine overheat = now overheating oil???
Replies: 18
Views: 524

Re: Severe engine overheat = now overheating oil???

What oil pump- new/old? What are the bearing clearances? If it is NOT a high volume/pressure pump and has wide clearance - with 10/30 oil it is probably not too bad...IMO. If you are worried about the oils temp that will take a gauge or you could use a temp gun on the pan when you stop ..... Maybe t...
by BigBro74
Fri Jun 26, 2020 1:42 pm
Forum: Engine Tech
Topic: Used Cam
Replies: 17
Views: 952

Re: Used Cam

My experience is the same as old schools. If you still have the old lifters and they are in order - in the same block- I would just put them in- I do usually use moly lube on them still. If they are mixed up it may be easier to just use new lifters. I have done both numerous times with no casualties...
by BigBro74
Fri Jun 19, 2020 9:57 am
Forum: Engine Tech
Topic: Carb too small?
Replies: 23
Views: 977

Re: Carb too small?

On Race 2bbl holleys they can go way rich as the vacuum builds in the manifold in the upper rpms. To help bandaid this , one common tactic is to use a power valve that closes to try and flatten the fuel curve as the manifold vacuum rises- with the small carbs fuel just flows out from all the orifice...
by BigBro74
Thu Jun 04, 2020 12:54 pm
Forum: Engine Tech
Topic: energy suspension motor mounts
Replies: 13
Views: 578

Re: energy suspension motor mounts

I am also interested in this topic that the OP has. Over the years (18 seasons) I have built/rebuilt many 2bbl circle track engines. In the last couple of years I have experienced problems with oil pump pickup tubes like the op is describing. The cars always use solid mounts. But the pickup tube pro...
by BigBro74
Sun May 24, 2020 10:57 pm
Forum: Engine Tech
Topic: Rocker arm ???
Replies: 18
Views: 1124

Re: Rocker arm ???

I would be tempted to use comp magnum rockers and ask for forgiveness if they ever inspected you- around here they inspect very little and look the other way a lot to keep car counts up. A magnum pivot ball rocker would be better but in”the spirit” of the rules😁 - if they inspect a lot under the val...
by BigBro74
Sat May 23, 2020 10:31 am
Forum: Engine Tech
Topic: Rocker arm ???
Replies: 18
Views: 1124

Re: Rocker arm ???

You actually seem to have quite a bit of room to work- I have questions- it says Rochester with stock intake only- what carb are you to run with all the better listed aluminum intakes (which I would run)?? Does it get a Holley 2bbl on those? (It doesn’t say) You can use 1.6 ratio stamped rockers it ...
by BigBro74
Wed Apr 15, 2020 4:31 pm
Forum: Engine Tech
Topic: Direct from Youtube - step right in......Alien Valves
Replies: 31
Views: 1634

Re: Direct from Youtube - step right in......Alien Valves

Dave Koehler wrote:
Wed Apr 15, 2020 11:08 am
rebelyell wrote:
Wed Apr 15, 2020 10:40 am
"it'll idle (sic) like a kitten"
I'm not too impressed with my cats. It's all or nothing with them. :lol:
Its like the opposite of the "Ghost Tune" - me, I want a snotty idle........ :( so none of these great valves for me...
by BigBro74
Sat Apr 11, 2020 12:53 pm
Forum: Engine Tech
Topic: Should I balance the crank, or
Replies: 28
Views: 1766

Re: Should I balance the crank, or

In my experience too —which is not even in the same league or anything to compare as Dave K’s ——scat cranks that I have gotten balanced have a LOT of extra weight to be removed ON purpose. I don’t know about eagles - I have not used one YET -But I am about to find out when they send my crank -as the...
by BigBro74
Mon Apr 06, 2020 12:59 am
Forum: Engine Tech
Topic: Tight timing chain
Replies: 26
Views: 2192

Re: Tight timing chain

I have not used one of their timing sets in several years......
you may just try a different one and see —for science
I sent you a PM
by BigBro74
Mon Apr 06, 2020 12:23 am
Forum: Engine Tech
Topic: Tight timing chain
Replies: 26
Views: 2192

Re: Tight timing chain

Too bad there is no way to mach up the timing set with an electric motor or something and “run it in” awhile to put just a bit of wear on the chain and loosen it up...
You could just try a different chain if you haven’t already.

What kind of timing set is it?
by BigBro74
Sat Mar 28, 2020 12:07 pm
Forum: Engine Tech
Topic: 2 heads better than 1 - power porting E7TE iron.
Replies: 625
Views: 93572

Re: 2 heads better than 1 - power porting E7TE iron.

Last week in a conversation with my machinist (before brentry brought this up)(before stay at home...) we were just talking about how when he was younger that putting those Chevy valves in a sbf was standard procedure to get them to run , and he did it all the time- he is a ford enthusiast. I’ve not...