Keith Fulp's 618 A Head Interceptor

Keith, would these work good with nitrous?

68formalGT wrote:Keith, would these work good with nitrous?

The thick deck and 18 bolt pattern of the Trick Flow casting combined with a huge port area, would make a fine nitrous head. I would add a softening "dish" CNC cut to the quench area if desired by the customer.
Thanks,
Keith

Awesome build

Wheelie58 wrote:During this year, I am going to do a set of a more conservative spec and put those on a 598-605 for a test.
I also will "twist" a single 4 manifold.

Thanks,
Keith

Keith have you put together any other builds like mentioned above?

68formalGT wrote:

Wheelie58 wrote:During this year, I am going to do a set of a more conservative spec and put those on a 598-605 for a test.
I also will "twist" a single 4 manifold.

Thanks,
Keith

Keith have you put together any other builds like mentioned above?

I have not personally done any 10 liter single carb Interceptor work (yet).
Engine Systems has a couple of Big Bore - short stroke Interceptor engines that dynoed nicely with single gasoline carbs. One engine was about 515" and the other in the mid 540" range. Both used Interceptor heads and Trick Flow cast single 4 intakes with major port and plenum work.
Both were high end builds with big cams. Both made 1100 HP (+-) and pulled strong in higher RPMs.
Thanks!
Keith

I'm sure you looked at your lifters by now. How's everything looking?

Pretty darn good numbers Keith, 1100 horse at 500-550 cubes, awesome!!

PanaVet wrote:I'm sure you looked at your lifters by now. How's everything looking?

PanaVet
I regret to report that I have not touched the car or engine since the last race of 2014. I will check it over in early February, before the first race in Orlando.
Just too much to do....
Thanks
Keith

Keith,
Can you post the dates for the Orlando race? Since I'm currently only spectating I'd like to come watch!
Thanks, Sheldon

STR-LGL-70 wrote:Keith,
Can you post the dates for the Orlando race? Since I'm currently only spectating I'd like to come watch!

Thanks, Sheldon

February 13-14-15

Wheelie58 wrote:

February 13-14-15

How did it go?

I had to cancel the trip. Just too much going on at the shop.
I will start at Gainesville on March 6-7 and then run the Gatornationals the following week.
Thanks
Keith

Any chance you heading west to No Problem Raceway for the Jeg's Cajun Nationals in March?

I would love to see your car at Bradenton at the "Spring Break Shootout" 6/7/8 march  Have you ever thought about doing any of the NMRA meets?

man that's one sweet build and the port work is amazing, congrats it just plain awesome

jbozzelle wrote:Any chance you heading west to No Problem Raceway for the Jeg's Cajun Nationals in March?

No John....March is all wiped out by a Lucas Oil race in Gainesville FL and then the GatorNationals for some S/C action.
Gotta make parts the rest of the month, and start on the aluminum 645
Thanks,
Keith

57custom wrote:I would love to see your car at Bradenton at the "Spring Break Shootout" 6/7/8 march  Have you ever thought about doing any of the NMRA meets?

Custom... I will be racing in Gainesville that weekend.
Some day I might try Open Comp. But there always seems to be schedule clash on those events.
Thanks,
Keith

old blue wrote:man that's one sweet build and the port work is amazing, congrats it just plain awesome

Thank you!
Keith

You running S/C rather than S/G Keith??

514F-1 wrote:You running S/C rather than S/G Keith??

Yeah...S/C
It is a lot more fun letting it run kinda wide open.
Tired of the throttle stop for a while.

Update on the 618.
Over 300 runs and overdue for inspection of the Crower EnduraMax .937" bushing type lifters.
Pulled the lifters, inspected and put them right back in.
The engine had experienced wear on the upper pushrod balls, so I have a new set of Manton pushrods on the way with their tool steel tips. I will also install Manton tool steel adjusters in the rockers.
Contemplating the use of a different oil. Lucas 20-50 has served well, but I may look in to something to help with the pushrod top.
Although the PSI 1249 valve springs looked fine and had adequate seat pressure, I replaced them just due to the number of runs and dyno pulls.
All seems clean and happy inside.
Keith

Wheelie58 wrote:Update on the 618.
Over 300 runs and overdue for inspection of the Crower EnduraMax .937" bushing type lifters.
Pulled the lifters, inspected and put them right back in.
The engine had experienced wear on the upper pushrod balls, so I have a new set of Manton pushrods on the way with their tool steel tips. I will also install Manton tool steel adjusters in the rockers.
Contemplating the use of a different oil. Lucas 20-50 has served well, but I may look in to something to help with the pushrod top.
Although the PSI 1249 valve springs looked fine and had adequate seat pressure, I replaced them just due to the number of runs and dyno pulls.
All seems clean and happy inside.
Keith

 

How do you think it would have done with VP Q16 instead of the VP C14?

68formalGT wrote:How do you think it would have done with VP Q16 instead of the VP C14?

No 2 engines are the same, but typical gains with that type fuel is between 1% and 4%.

Wheelie58 wrote:

68formalGT wrote:How do you think it would have done with VP Q16 instead of the VP C14?

No 2 engines are the same, but typical gains with that type fuel is between 1% and 4%.

That's quite a bit when you start where you were at!! Do you think it would have done any better then the alcohol?