|
|
|
|
05-20-2024, 08:06 AM
|
#1 |
|
VIP Member
Join Date: Dec 2001
Location: Arkansas - In the middle of everything.
Posts: 2,003
Likes: 64
Liked 784 Times in 196 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Did you pour the intake and exhaust ports for volume?
__________________
|
|
|
| Liked |
|
05-20-2024, 09:35 AM
|
#2 | |
|
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 657
Likes: 87
Liked 373 Times in 129 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Quote:
|
|
|
|
|
|
05-20-2024, 12:32 PM
|
#3 |
|
VIP Member
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
Likes: 575
Liked 880 Times in 311 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Mark,
since I'm not well informed about the stocker combinatons... What year and body does the 335 HP 396 fit? I found the small cam 1969 335 HP 427 in Dwights class tool section
__________________
Adger Smith (Former SS) Last edited by Adger Smith; 05-20-2024 at 12:35 PM. Reason: add |
|
|
|
|
05-20-2024, 01:49 PM
|
#4 | |
|
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 657
Likes: 87
Liked 373 Times in 129 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Quote:
|
|
|
|
|
| Liked |
|
05-20-2024, 02:10 PM
|
#5 |
|
VIP Member
Join Date: Dec 2001
Location: Texarkana Ark/TX
Posts: 2,446
Likes: 575
Liked 880 Times in 311 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
OK, Mark...that works.
I was looking for a GM rating of 335..& should have looked at 350 HP specs. Yes, 335 is the rating for the 1968 350 HP 396 with stick shift. What I think I saw is all bodies with stick in 1968 for stock are 335. (Base) I see it has the bigger cam, too. That Dog might hunt with a stick. Thanks for the info... Adger
__________________
Adger Smith (Former SS) |
|
|
|
| Liked |
|
05-20-2024, 04:26 PM
|
#6 | |
|
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 657
Likes: 87
Liked 373 Times in 129 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Quote:
|
|
|
|
|
| Liked |
|
05-20-2024, 10:39 PM
|
#7 |
|
Senior Member
Join Date: Dec 2001
Location: Elysburg, Pa
Posts: 733
Likes: 367
Liked 327 Times in 121 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
I'm guessing you didn't flow with the manifold on.
|
|
|
|
|
05-21-2024, 12:33 AM
|
#8 | |
|
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 657
Likes: 87
Liked 373 Times in 129 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Quote:
You would be correct, I simply wanted a base line on the heads as they were run. The 396 was a 440 HP engine as run, I know the factory intake easily supports more than that from other builds I've done in the past. I would be interested in knowing what a worked over intake was worth? I'am pretty sure the heads can be very much improved on, we're going to see soon. https://classracer.com/classforum/sh...ad.php?t=78477 Last edited by HP HUNTER; 05-21-2024 at 12:39 AM. |
|
|
|
|
| Liked |
|
05-22-2024, 09:30 PM
|
#9 |
|
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 657
Likes: 87
Liked 373 Times in 129 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Here's a better picture of the head before work was started. Notice both valves are sunk quite a bit. I checked all the valve heights, and checked PV clearance, CC the chamber 100.5. So according to my calculations its short on compression.
Last edited by HP HUNTER; 05-22-2024 at 09:37 PM. |
|
|
|
| Liked |
|
09-13-2024, 04:31 PM
|
#10 |
|
Senior Member
Join Date: Feb 2012
Location: Colorado Springs Colorado/Thousand Oaks Ca
Posts: 657
Likes: 87
Liked 373 Times in 129 Posts
|
Re: 335 HP 396 290 Head Casting Build & Dyno Test
Done and ready to dyno.
Last edited by HP HUNTER; 09-13-2024 at 05:47 PM. |
|
|
|
 |
|
|
Hybrid Mode
