598 SCJ Build

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Post  derek528 on April 6th 2012, 6:54 am

Well we skipped last saturday because we ran out of parts. The pistons and cam showed up yesterday so we are going in sat and we should start making alot of progress on the short block. The cam we ended up with is a custom comp. 281, 296 duration @.050 113 lobe sep. Lobe lift is .470 on both lobes which is .813 with a 1.73 rocker.

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Post  1970 ford maverick on April 26th 2012, 10:45 pm

derek528 wrote:Well we skipped last saturday because we ran out of parts. The pistons and cam showed up yesterday so we are going in sat and we should start making alot of progress on the short block. The cam we ended up with is a custom comp. 281, 296 duration @.050 113 lobe sep. Lobe lift is .470 on both lobes which is .813 with a 1.73 rocker.
Nice build "derek528", any progress lately? THNX MAVMAN
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Post  derek528 on April 27th 2012, 5:03 pm

Yeah, the block is fully machined, cleaned, plugged, and the cam bearings are in.. The heads were cnc'ed last week. Tomorrow we are going to pin fit the rods, file the rings, and hopefully assemble the short block. The crank is balanced and ready to go in. I'm ready to hear it run, And see what it does on the dyno. Hopefully It will be done by the end of may.

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Post  Lem Evans on April 27th 2012, 5:36 pm

cheers

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Post  derek528 on May 5th 2012, 5:33 pm

The short block is now assembled. Cam is in, it's 3.5 degrees advanced. Next weekend we will assemble the heads. Pushrod lengths ended up at 9.050 intake, and 9.150 exh. Geometry looks good with the crane gold wide body rockers, we ended up with .830 gross valve lift, when measured off the retainer.
I did get some flow numbers. They ran the same cnc program on another set of heads. The customer decided to have them flowed. The only difference is that my heads have a 2.25 valve and the ones they flowed use the original 2.20 valve.

I don't have all the numbers, but the heads flowed 377 at .500, and 403 at .800 w/ 2.20 valves. I don't know what mine flow with the 2.25 valve, I'd guess slightly more. The exh ports were less impressive at 220 cfm without a test pipe. The bowls are pretty big on the exhaust, that hurts the flow numbers when not using a pipe, and they didn't have a test pipe handy to use for the test.

All in all I'm very pleased with the headwork, I think it's going to make pretty decent power.

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Post  derek528 on May 13th 2012, 10:28 am

Just another update. We got the oil pump, and pickup tube on. We set the pickup/pan clearance. My brother made a crank scraper for me, it turned out pretty nice.

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Post  derek528 on June 17th 2012, 10:14 pm

getting closer, mocked up the valvetrain with got pushrods ordered, working on the intake now. About two more weeks should have it done.

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Post  Lem Evans on June 17th 2012, 10:20 pm

Nice Very Happy

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Post  derek528 on June 17th 2012, 10:24 pm

I have to thank Lem Evans, a lot of the parts used were supplied by him, his service was spot on.

Thanks

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Post  John Myrick on July 13th 2012, 4:27 pm

any updates ?
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Post  derek528 on July 13th 2012, 10:50 pm

Still working at it. It's close, it should be on the dyno in a couple weeks.

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Post  derek528 on July 22nd 2012, 12:15 am

It's finished. If all goes well, I will have dyno numbers by the end of next week.
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Post  dfree383 on July 22nd 2012, 1:04 am

Sweet, Keep us posted.
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Post  dirt_worker on July 22nd 2012, 1:57 am

Nice looking job on the intake. have any pictures of the plenum?
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Post  derek528 on July 22nd 2012, 8:08 am

Here are a few
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Post  IDT-572 on July 23rd 2012, 4:59 pm

derek528 wrote:Here are a few
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Looks good Derek,

Lot of hard work and welding, porting time. You might want to round your runner dividers more to keep the air on the walls the look sharp in the pictures.
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Post  derek528 on July 23rd 2012, 8:33 pm

I knocked them over with a sand roll, they probably are still too sharp, but I was running out of steam by that point and settled for good enough. I'll probably do more to the intake some time in the future if I get bored.

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Post  richter69 on July 23rd 2012, 9:18 pm

looks familiar...... Wink
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Post  derek528 on July 23rd 2012, 10:16 pm

richter69 wrote:looks familiar...... Wink

I kinda modeled it after the small block manifold made by edelbrock for the sc1 heads

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Post  IDT-572 on July 23rd 2012, 11:48 pm

derek528 wrote:
richter69 wrote:looks familiar...... Wink

I kinda modeled it after the small block manifold made by edelbrock for the sc1 heads

I have done two intakes like you have done, one was a victor the other a mafia the.

You can see mine in the proven build section, I will bump it up for you.

There is a video of it a couple of pages in.
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Post  derek528 on July 24th 2012, 6:46 am

IDT-572 wrote:
derek528 wrote:
richter69 wrote:looks familiar...... Wink

I kinda modeled it after the small block manifold made by edelbrock for the sc1 heads

I have done two intakes like you have done, one was a victor the other a mafia the.

You can see mine in the proven build section, I will bump it up for you.

There is a video of it a couple of pages in.

cool I'll check it out.

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Post  richter69 on July 27th 2012, 5:14 pm

598 SCJ Build  - Page 2 Sisters003-1
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Post  derek528 on July 27th 2012, 11:52 pm

richter69 wrote:598 SCJ Build  - Page 2 Sisters003-1

Looks familiar lol. That started as a victor correct?

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Post  richter69 on July 28th 2012, 12:08 am

mine is the TFS Blake did, I'll be honest my little 563 dont really start liking it until it gets over 7500 lol. I'm gonna make it a 588 this winter and more than double the nitrous I'm putting to it now........ it wont want to peak as high then lol.
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Post  Barney on July 28th 2012, 1:23 am

richter69 wrote:mine is the TFS Blake did, I'll be honest my little 563 dont really start liking it until it gets over 7500 lol. I'm gonna make it a 588 this winter and more than double the nitrous I'm putting to it now........ it wont want to peak as high then lol.
Shift it at 6k, it'll fly... Razz
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