We have P-38 SBF heads in stock - 460 Ford Forum
Jon Kaase Racing Engines Jon Kaase is considered one of the best minds in the world of Big Block Fords and has created many parts to help enthusiasts with their 460 based projects. Gentlemen start your questions…

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post #1 of 27 (permalink) Old 11-01-2011, 11:46 AM Thread Starter
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We have P-38 SBF heads in stock

We have a few sets of the first run of P-38 small block Ford heads in stock. You may remember that we sold a similar head through Jegs a few years ago. It's a Windsor package with better porting and canted valves. Here’s some info on them:


http://www.mooregoodink.com/news/wp-...38cylheads.pdf


We have a few sets of cast valve covers here, and Moroso makes a real nice billet rail fabricated valve cover.

Please tell us if you’re calling as a result of this forum! … Jon Kaase 770-307-0241
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post #2 of 27 (permalink) Old 11-01-2011, 10:29 PM
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I just bought the December 2011 Modified Mustangs & Fords magazine and they have a nice write up on them.

Later Mark.
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post #3 of 27 (permalink) Old 11-06-2011, 07:41 PM
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Question p-38

whats the cost bare, or bolt on with hy roller springs, and whats the cost of valve covers. thanks
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post #4 of 27 (permalink) Old 11-07-2011, 06:43 PM
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Quote:
Originally Posted by 66fomoco View Post
whats the cost bare, or bolt on with hy roller springs, and whats the cost of valve covers. thanks

I'm betting that you will need to call the number and ask.

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post #5 of 27 (permalink) Old 11-10-2011, 02:00 AM
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I'm having a hard time believing the HP claim. Most H/C/I 302 make in the 380-410hp [email protected] 6500ish rpm. I could see another 25-30hp spinning the motor to 7500 but with a "modest" cam and 9:1 comp I cant see 500bhp, maybe 420-430hp being more accurate, I would love to see a dyno chart. I know most 347 stroker combos have a really hard time hitting 500bph with a good amount more compression. I have been looking forward to these heads for a while. If there anything like the other Kaase products I'm sure they perform close to the advertised #'s but 500hp out of a NA bolt on 302 is a BIG claim. Cant wait to see some dyno vids and comparisons.
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post #6 of 27 (permalink) Old 11-10-2011, 03:56 AM
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Just goes to show you what a good set of heads and the right cam can achieve. Cant wait to see what they will make on a stroker engine. With a solid roller down here guys are making 550hp+ on pump fuel with a 347 or 363 stroker windsor.
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post #7 of 27 (permalink) Old 11-10-2011, 10:09 AM
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Smile p38

John how much complete assembled heads are? I've been waiting for these to come out woo hoo
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post #8 of 27 (permalink) Old 11-10-2011, 12:17 PM
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I cant even get in his web site to see any info on the heads.
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post #9 of 27 (permalink) Old 11-11-2011, 11:45 AM
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Like to have a set , I also would like to have a price and avilability. Thanks

Way Fast Whitey.
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post #10 of 27 (permalink) Old 11-11-2011, 11:55 PM
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Im with bluedevil, 500 plus sound realy high, with a dyno you can almost make them say any hp what you want, only sae dynos that have been calibrated correctly will give honest numbers.
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post #11 of 27 (permalink) Old 11-12-2011, 08:44 AM
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HP

Come on guys, John has shown time and time again his stuff is what he says it will do. Look at his scj heads and when he came out with his p51 heads they did what he said they would. I can't wait to get a set and have no doubt of his products. John puts a ton of RD into his products and does not release them untill there right. Joe
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post #12 of 27 (permalink) Old 11-12-2011, 09:35 AM
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I like them i have these heads on my 76 cobra 2 pulling the wheels at the top of this page.

84 hatch scj headed 472" on 10" tires
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post #13 of 27 (permalink) Old 01-15-2012, 12:42 AM
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What is the Combustion Chamber Volume?

Is there a piston available to run them?
I guess the valve reliefs will not be in the correct locations on most stock Type Ford pistons?
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post #14 of 27 (permalink) Old 01-15-2012, 08:14 AM
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60cc chambers and you need a custom piston for them for big lift cams but they do work with stock pistons with a decent size cam,i have them on a 86 5.0 from a lincoln LSC it has flat tops with no valve reliefs and im running a comp 292 cam 244 dur @ .050 and 534 lift and had room for more cam, (how much more i don't know) but the valves never even touched the clay on this cam.

84 hatch scj headed 472" on 10" tires

Last edited by nuclearcobra; 01-15-2012 at 08:16 AM.
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post #15 of 27 (permalink) Old 01-15-2012, 08:42 AM
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Quote:
Originally Posted by nuclearcobra View Post
60cc chambers and you need a custom piston for them for big lift cams but they do work with stock pistons with a decent size cam,i have them on a 86 5.0 from a lincoln LSC it has flat tops with no valve reliefs and im running a comp 292 cam 244 dur @ .050 and 534 lift and had room for more cam, (how much more i don't know) but the valves never even touched the clay on this cam.
Ok, thanks.
I figured that you could probably get away with stock type valve reliefs with a small cam. Thanks for confirming.
The project I'm currently spec'ing for though is a flat top stroker 408 Windsor.
The cam is 270-278 @050. and I think the lift was .672. I haven't figured the compression ratio with these heads 60cc chambers yet but I would guess that would put it around 11.8 to 12 to1 range with the P38's. I think I figured the compression ration to be a little over 12.5 to 1 with a 58cc chamber.
I bet the P38's would have been perfect for this project.
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