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Search found 654 matches

by PRH
Tue Nov 19, 2019 7:57 pm
Forum: Engine Tech
Topic: Dart 180 cc alloy head as cast
Replies: 73
Views: 2541

Re: Dart 180 cc alloy head as cast

“Needed a solid roller cam”??
As in...... you started out with something different, and couldn’t reach your goals with it, and then swapped to a solid roller??

Or..... you just started out with the solid roller in the first place??
by PRH
Tue Nov 19, 2019 7:37 pm
Forum: Engine Tech
Topic: Dart 180 cc alloy head as cast
Replies: 73
Views: 2541

Re: Dart 180 cc alloy head as cast

I agree.

I’d think something flowing a solid 275-ish in the 200cc range would get it done.
by PRH
Tue Nov 19, 2019 7:17 pm
Forum: Engine Tech
Topic: Dart 180 cc alloy head as cast
Replies: 73
Views: 2541

Re: Dart 180 cc alloy head as cast

Here’s one...... 383, 537hp...... uses AFR 195’s: https://westcoastengines.com/383-stroker/525-hp/ Here’s another one...... uses AFR 210’s: http://www.whiteperformance.com/engine_prog_383-562hp.html My point was, it’s not hard to find pretty mild street 383’s....... like a GM ZZ build or equivalent....
by PRH
Tue Nov 19, 2019 7:09 pm
Forum: Engine Tech
Topic: Dart 180 cc alloy head as cast
Replies: 73
Views: 2541

Re: Dart 180 cc alloy head as cast

Can anyone post a link to any major engine builder doing a 383/550hp crate engine? Seems like the cubes sell....... and since a 427 isn’t really anymore expensive to build from all new parts than a 383........ it doesn’t seem like many people are building higher effort 383 crate motors. 402”, 10:1,...
by PRH
Tue Nov 19, 2019 11:54 am
Forum: Engine Tech
Topic: Old shcool p/s head
Replies: 2
Views: 320

Re: Old shcool p/s head

Are they gonna hit the flow bench?
by PRH
Mon Nov 18, 2019 7:30 pm
Forum: Engine Tech
Topic: Dart 180 cc alloy head as cast
Replies: 73
Views: 2541

Re: Dart 180 cc alloy head as cast

Imo, for something like an engine contest, and using a dyno that has good control over the rate during a pull, I’d rather there not be any inertia correction.
by PRH
Mon Nov 18, 2019 3:36 pm
Forum: Engine Tech
Topic: Dart 180 cc alloy head as cast
Replies: 73
Views: 2541

Re: Dart 180 cc alloy head as cast

Not sure why the engine contest is being mentioned? Is that to validate the other dyno? The way I took it was simply that at the Engine contests, everyone uses the same dyno. High or low...... it’s the same for all. Not like comparing results gleaned from dynos from other parts of the country, wher...
by PRH
Thu Nov 14, 2019 5:35 pm
Forum: Engine Tech
Topic: Oversize valve suppliers
Replies: 13
Views: 910

Re: Oversize valve suppliers

houser45 wrote:
Wed Apr 24, 2019 9:03 pm
Where do i find .003 oversize 11/32 2.02,1.60 .100 long or standard length stainless valves?
I assume you’re talking about .003 larger diameter stems.

I have never seen that offered in a performance type valve.

Time for new guides.
by PRH
Wed Nov 13, 2019 3:21 pm
Forum: Engine Tech
Topic: Dodge StreetVan w/360ci Alu.heads - ProFlo4 - Camchoice
Replies: 15
Views: 544

Re: Dodge StreetVan w/360ci Alu.heads - ProFlo4 - Camchoice

I would think it could benefit from more duration to take advantage/start to make use of the bigger heads. I don’t know what its like over there getting machine work done on factory American heads, but if you have some stock 360 heads that aren’t cracked for cores, I’d be tempted to go for a stroker...
by PRH
Sat Nov 09, 2019 7:35 pm
Forum: Engine Tech
Topic: Dodge StreetVan w/360ci Alu.heads - ProFlo4 - Camchoice
Replies: 15
Views: 544

Re: Dodge StreetVan w/360ci Alu.heads - ProFlo4 - Camchoice

Something along the lines of the Lunati 711 Voodoo.

The valvetrain won’t likely be whisper quiet though.
by PRH
Fri Nov 01, 2019 10:03 am
Forum: Engine Tech
Topic: Valve rotators
Replies: 6
Views: 420

Re: Valve rotators

The story I heard is...... not needed with unleaded fuel.

True or not? No idea.

But...... I have seen way more failed rotators than retainers....... and none of the common modern gas powered stuff seems to use them anymore.

I usually get rid of them myself.
by PRH
Sun Oct 20, 2019 6:31 pm
Forum: Engine Tech
Topic: 305 head flow possibilities?
Replies: 52
Views: 2375

Re: 305 head flow possibilities?

I put together a low buck 305 about 20 years ago. Zero deck with that tops, RPM intake, headers, 650dp carb, Elgin 920 cam.......9.6cr as I recall. Heads started out as 1.72’s...... 434 casting number maybe?? Looked like 882’s, but for a 305. I put 1.84’s in, nice valve job, blended bowls. I don’t r...
by PRH
Sun Oct 20, 2019 6:26 pm
Forum: Engine Tech
Topic: How much do composition head gaskets compress?
Replies: 4
Views: 391

Re: How much do composition head gaskets compress?

For the application at hand...... does it really matter?

Put head on....... barely snug bolts.
If there is an area where there is a gap between the head and block, measure with a feeler gauge.
Torque down head, remeasure..... you have your answer for future reference.
by PRH
Sun Oct 20, 2019 10:37 am
Forum: Engine Tech
Topic: Under performing 357 sbc
Replies: 33
Views: 1582

Re: Under performing 357 sbc

If we’re talking about generalities......... I generally find the motor is easier to get good power out of, and the car will be easier to get good et’s out of it the heads have flow numbers that are pretty good/high in relation to the runner volume, as opposed to runners that are a little big for wh...