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598 Thor heads with twins

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Post  738drvr August 26th 2021, 10:25 am

Just ordered the top end this morning.
Planning twin 88s or 94s.
Fuel Tech FI.
C&C aluminum block. C&C Pro 18 heads(Thors), WW rockers,  Bryant crank, etc…
Roger Szabo at Kaase’s will be helping me with it. We’re going to improve on the 598 that was in his son’s car.
That car ran low 4’s. Hope to do a little better. It was a C head with 88’s.

Bucket list item. 200+ in the 1/4. Close to 200 in the 1/8. Start testing next season. 4.50s/7.50s next year and then wick it up.

Will start with a Merkl C6. All Ford until I can’t.

Plan to run Dragweek 2022. Pro Street PA and Unlimited.
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Post  Mark Miller August 27th 2021, 12:09 am

Tell Roger i was sorry to hear of the passing of Keith!!I remember them at Norwalk NMCA race back in the mid 90's when Keith had the 82 Mustang GT with a 351 Windsor and Nitrous running mid 9's IIRC and dragging the rear bumper!!Good luck with this engine and Turbos sounds like it should fly!!

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Post  norm August 27th 2021, 9:03 am

738drvr wrote:
 C&C Pro 18 heads(Thors),

It was a C head with 88’s.


Sounds awesome!

What are they estimating the Pro18's would be over a C head power wise?
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Post  738drvr August 27th 2021, 10:49 am

Guess? Maybe 1-200hp with same amount of boost. The gen II Thor’s could make 100hp more than a C NA. Really hard to say. Spoke with Jose at Forced Inductions. Their own 94 or 98s will hit 3500-4000 on a 600” no problem around 82-8300rpm. Roger says they were at least 3k with under 40#. He said 150 passes between maintenance. Just oil, filters and lash. You can run easier cam profiles and less rocker arm ratio with big turbos. Easier on parts.
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Post  738drvr August 27th 2021, 10:58 am

Mark Miller wrote:Tell Roger i was sorry to hear of the passing of Keith!!I remember them at Norwalk NMCA race back in the mid 90's when Keith had the 82 Mustang GT with a 351 Windsor and Nitrous running mid 9's IIRC and dragging the rear bumper!!Good luck with this engine and Turbos sounds like it should fly!!

Would like to be the fastest street legal all Ford door car.
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Post  bruno March 18th 2022, 12:56 pm

Any update on this build ?

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coming soon x275 build .........
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Post  738drvr March 18th 2022, 1:15 pm

Drop the parts off tomorrow at the machine shop. Been waiting a bit for Kaase to source everything for it. Have everything but the dry sump system. Should have that in the next couple of weeks. Also, had to look for the right folks to to do the hoops for the block and heads and the big key way lifters. Ready to roll now. Still trying to find a shop that can take the car to a 6.00 25.1/25.2 cert. Any recommendations? Planning Sickweek next year. Got in for Dragweek this year.
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Post  738drvr June 16th 2022, 6:47 pm

Intake turned out real nice.


598 Thor heads with twins F4572c10
598 Thor heads with twins 1a917f10
598 Thor heads with twins D4793810
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Post  hbstang June 18th 2022, 10:40 am

thats a lot of motor!dont know if the c6 will keep up.maybe a 5 speed lenco with overdrive?
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Post  738drvr June 18th 2022, 12:29 pm

Merkyl says he couldn’t break his with 3k hp.

We’ll see
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Post  hbstang June 18th 2022, 1:32 pm

what car is this going in?
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Post  2 wicked June 18th 2022, 8:34 pm

Going to be badass, when it's done

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Post  BBFTorino June 18th 2022, 10:34 pm

Can I borrow this engine/trans combo to smoke all the local Chevy boys with? After I'm done, I'll give it back, I promise!! Very Happy Very Happy

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Post  738drvr June 18th 2022, 11:45 pm

598 Thor heads with twins 384a4810
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Post  Mark Miller June 19th 2022, 11:29 pm

738drvr wrote:598 Thor heads with twins 384a4810

Bad Ass Fairmont!!

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Post  J.Toney February 20th 2023, 2:07 pm

Any updates?
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Post  738drvr February 20th 2023, 2:42 pm

We will be testing in March. Made it to Sickweek but weren’t able to continue after the first day. We will be at SickSummer and Summit Midwest Drags this summer. Will post some times after we test next month.
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Post  2 wicked February 20th 2023, 2:48 pm

That Fairmont looks better than any fox body!!!!! Killer 😜

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Post  738drvr February 20th 2023, 2:53 pm

Sorting out charging and cooling issues.
The engine is a beast.
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Post  hbstang February 20th 2023, 8:55 pm

did you get any dyno numbers yet?love the car,gonna be a runner!
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Post  738drvr February 20th 2023, 9:59 pm

We did a base tune at about 7# and it was 900WHP. We will end up between 25-30# to do what we need. It should make 2000WHP easy. Limit is probably 3000WHP. Car is only 7.50/4.50 cert. right now so no need to lean on it.
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Post  hbstang February 20th 2023, 11:55 pm

are you running titanium valves?and what fuel ?i am asking as i am having my A441 heads upgraded and wondering if i need copper berillium valve seats on a n/a car with e85.also can i get away with SS exhaust valves and iron seats?
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Post  738drvr February 21st 2023, 1:28 pm

The car is driven on pump gas and we have a dual fuel system with an electric pump and tank in the back for pump gas and a mechanical pump and meth tank in the front. When the car sees about 1# of boost it seemlessly switches over to meth. My tuner worked with AFIS(injection) and Haltech to get the transition right. It’s perfect. We did the CB seats and inconel exhaust valves. Stainless intake valves. We won’t turn the engine higher than 7500. In your application, I would probably stick with SS valves and standard seats unless your very high rpm(8500+). Give Kaase a call and speak with him or Roger Szabo. They spec’d my engine for my application.
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Post  738drvr February 21st 2023, 1:34 pm

598 Thor heads with twins 7a900b10
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Post  hbstang February 21st 2023, 7:38 pm

738drvr wrote:The car is driven on pump gas and we have a dual fuel system with an electric pump and tank in the back for pump gas and a mechanical pump and meth tank in the front. When the car sees about 1# of boost it seemlessly switches over to meth. My tuner worked with AFIS(injection) and Haltech to get the transition right. It’s perfect. We did the CB seats and inconel exhaust valves. Stainless intake valves. We won’t turn the engine higher than 7500. In your application, I would probably stick with SS valves and standard seats unless your very high rpm(8500+). Give Kaase a call and speak with him or Roger Szabo. They spec’d my engine for my application.

the heads are at kaases right now.the only reason i was going with ti intake valves is they are 2.500 in dia,so i thought it would help .with spring life.
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