318 build with dyno session

[273]

Progress has been slow, due to a bunch of customer work, but "rodney" is finally assembled, and primed. Hope to test run and break in the cam this week.

View attachment 1716433186

Looking good

 

[toolmanmike]

Progress has been slow, due to a bunch of customer work, but "rodney" is finally assembled, and primed. Hope to test run and break in the cam this week.

View attachment 1716433186

Good things take time so they say and you have other important things to do like make money to pay the light bill. LOL

Can't wait for some results and videos.

 

[Icetech]

Progress has been slow, due to a bunch of customer work, but "rodney" is finally assembled, and primed. Hope to test run and break in the cam this week.

View attachment 1716433186

That's awesome.. can't wait to see the results

 

[toolmanmike]

Perhaps, but it will be for sale at the conclusion of the dyno testing, so not a "set on kill" type build.

Perfect, and I'm glad you didn't go full tilt. 90% of the guys out there would be plenty happy with what you are building.

 

[NC Engine Builder]

Yeah, so as a recap, I made a few minor changes, to keep this a simple "everyman" build. That means out of the box heads, no exotic machine work, no heavy milling of heads ect. Here is the basic rundown as it ended up.
Early 70s 318 block .060 over
Cast 340 crank turned .010/.010
Scat I beam rods
Icon forged flat top shelf pistons
King bearings
Melling oil pump
Comp solid flat tappet cam
Liberty performance bushed rockers 1.6
AFR heads BOX STOCK
RPM air gap intake
Milodon stock type oil pan
ARP main studs
The compression is lower than I wanted, it measures out 9.9-1 but again, bolt together simplicity

 

[NC Engine Builder]

The goal is to HOPEFULLY make 400 HP or so, but might not have enough compression and camshaft, we will see.

 

[toolmanmike]

Yeah, so as a recap, I made a few minor changes, to keep this a simple "everyman" build. That means out of the box heads, no exotic machine work, no heavy milling of heads ect. Here is the basic rundown as it ended up.
Early 70s 318 block .060 over
Cast 340 crank turned .010/.010
Scat I beam rods
Icon forged flat top shelf pistons
King bearings
Melling oil pump
Comp solid flat tappet cam
Liberty performance bushed rockers 1.6
AFR heads BOX STOCK
RPM air gap intake
Milodon stock type oil pan
ARP main studs
The compression is lower than I wanted, it measures out 9.9-1 but again, bolt together simplicity

I can see 400 horse there. I'm guessing 423. LOL

 

[toolmanmike]

The goal is to HOPEFULLY make 400 HP or so, but might not have enough compression and camshaft, we will see.

If and when I put together my roller block teen with the Speedmasters, I would be happy to see 400 horse on the dyno screen.

 

[TT5.9mag]

The goal is to HOPEFULLY make 400 HP or so, but might not have enough compression and camshaft, we will see.

Remind me of the cam specs please. I think 400 is a stretch, unless it has a fairly healthy cam.

 

[33IMP]

To be honest.....
That menu looks better than the 365horse 327 chevy by quite a bit. The chevy was probably good for an honest 300-325 at the crank, so I can easily see that teener somewhere between 375-400.
And that's probably high 11s/low 12s in a light a-body, depending on prep/gear/converter.
(Wallace says 11.80s with 380hp at 3200lbs.)

 

[NC Engine Builder]

Remind me of the cam specs please. I think 400 is a stretch, unless it has a fairly healthy cam.

236/242 .502-.511 but using 1.6 rockers, should be upper .520s on lift

 

[273]

Remind me of the cam specs please. I think 400 is a stretch, unless it has a fairly healthy cam.

Ye of little faith

 

[B3422w5]

To be honest.....
That menu looks better than the 365horse 327 chevy by quite a bit. The chevy was probably good for an honest 300-325 at the crank, so I can easily see that teener somewhere between 375-400.
And that's probably high 11s/low 12s in a light a-body, depending on prep/gear/converter.
(Wallace says 11.80s with 380hp at 3200lbs.)

I went 11.50’s-60’s with that detuned( ran good bit smaller cam) on that enginemasters 477 horse 30 over 318 at 3400 pounds with a Chinese dual plane. Cam was 231-237 vice the 247/247 cam it was run in the competition with. It was 10.44 to 1.
So it wouldn’t surprise me if this piece could run 11.80’s at 3200.
Sounds like a very nice motor!

 

[273]

To be honest.....
That menu looks better than the 365horse 327 chevy by quite a bit. The chevy was probably good for an honest 300-325 at the crank, so I can easily see that teener somewhere between 375-400.
And that's probably high 11s/low 12s in a light a-body, depending on prep/gear/converter.
(Wallace says 11.80s with 380hp at 3200lbs.)

Richard Holdener did replicas of the high output 302/327/350 and they all dyno'd about 355 hp in dyno trim with headers. The heads where holding those engines back.

 

[toolmanmike]

I do not want to sidetrack this thread so no response is really necessary, but just as a point of referance to 400 horse, If you believe the Hot Rod magazine build years ago, they used KB 167's at zero deck, MP Magnum heads for 10:1, and a .230@.050/280 adv. with .512 lift (1.6 rockers) Also, an open plenum intake and a 750 Demon and got 400 @ 6200.

 

[TT5.9mag]

236/242 .502-.511 but using 1.6 rockers, should be upper .520s on lift

Thank you. That’s a nice grind, I’m not sure it will push the torque up high enough to make the 400hp but I’m hoping it does for you. You’ll be damn close I think.

 

[TT5.9mag]

Ye of little faith

Or Honest Abe. Same same

 

[318willrun]

It will be interesting to see... I think 400 is attainable

 

[273]

Or Honest Abe. Same same

You could be right, it all depends how well the AFR's respond, I think it will at least hit 400 hp, time will tell

 

[TT5.9mag]

You could be right, it all depends how well the AFR's respond, I think it will at least hit 400 hp, time will tell

I’m just glad someone is doing it and unbiasedly (is that a word) posting the results. Data is data and it will go in the memory bank.

 

[33IMP]

Richard Holdener did replicas of the high output 302/327/350 and they all dyno'd about 355 hp in dyno trim with headers. The heads where holding those engines back.

Again, so roughly 300-325 in a car with manifolds, alternator, water pump, exhaust system and 180 degrees.
I think I saw that episode. The torque bump at lower rpm from the 302 to the 350 was huge! Also good for knocking down the absurd claims about the "400 hp 302".

 

[mderoy340]

Can you please provide a Part # for the Liberty performance bushed rockers 1.6

 

[273]

I’m just glad someone is doing it and unbiasedly (is that a word) posting the results. Data is data and it will go in the memory bank.

100%

 

[Ant]

Hmm... interesting. I would love to see the results on this.

Now I'm wondering if I should dyno my motor too. The more data of configurations we have the better.

 

[ValiantRacing]

My Duster with the 318 went 11.70s 9.4 comp and stock Edelbrock heads, i had a little more cam than the subject engine, i don't think mine was 400hp