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Proven Engine Combinations Engine combinations, and the resultant HP and/or E.T.s

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Old 02-10-14, 02:25AM   #16
Gach
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Looked for it couldn't find it, if I do I'll post it.
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Old 02-10-14, 03:35AM   #17
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Yeah I did a Google search my self couldn't find any thing I have not read yet mostly cast head builds
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Old 02-10-14, 07:29AM   #18
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"That was a nice little motor, if I remember correctly you went a 10.80 in your Bird."

Thanks. It was a street combo and never spent much time at the track with that engine. It ran a best of 10.88 at 124.28 mph with a Performer RPM intake. One popular mph/hp calculator suggests 591.63 hp at that mph, my actual dyno sheet indicated 580.2 hp at 5800 rpm with the Performer RPM intake. With the Victor intake it made 600.9 hp at 6000 rpm but we never took it to the strip with the Victor installed.
http://www.pontiacstreetperformance....455sc2003.html

A fwiw. Years ago a good friend built a simple street engine using a 4.250" stoke in a 400 block with 6.8" rods and 'cleaned up' 87cc Edelbrock heads that my engine builder put together, nothing special about 300 cfm and 10.3 compression. He used a Performer RPM intake, Holley 750 carb and 1-7/8" headers. The cam was a Crower 236 degree hydraulic flat tappet with 1.6 rockers. On the dyno it made 509-513 hp at 5200 rpm.

I believe this is the Car Craft article Gach mentioned:

http://www.carcraft.com/techarticles...p_455_pontiac/

That article brought a lot of controversy at the time. Many in the iron d-port small intake runner volume crowd refused to believe it made that power with a XE 230 degree flat tappet cam.

Last edited by Steve C : 02-10-14 at 07:54AM. Reason: .
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Old 02-10-14, 11:29AM   #19
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Yup. That's the one. Good article.
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Old 02-11-14, 12:10AM   #20
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Thanks Steve and Gach after dinner I got some reading to do lol
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Old 02-11-14, 12:27AM   #21
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If you are going to run E-85, why shortchange yourself by running a 72cc head, why not go 65cc D-port and really pump up the compression?

I like the hydraulic rollers but if money is a problem, a solid flat tappet will run very well. If you are concerned about a lobe going flat, the cam can be nitrided. Plus, there are lifters that can direct more oil to the face of the lifter via a EDM'd hole in the face or a small flat precision-ground on the side of the lifter.

Check out Crower lifters.

good luck with your combo.
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Last edited by paul : 02-11-14 at 12:39AM.
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Old 02-11-14, 01:04AM   #22
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Quote:
Originally Posted by paul View Post
If you are going to run E-85, why shortchange yourself by running a 72cc head, why not go 65cc D-port and really pump up the compression?

I like the hydraulic rollers but if money is a problem, a solid flat tappet will run very well. If you are concerned about a lobe going flat, the cam can be nitrided. Plus, there are lifters that can direct more oil to the face of the lifter via a EDM'd hole in the face or a small flat precision-ground on the side of the lifter.

Check out Crower lifters.

good luck with your combo.
Now I have thought about this your talking about the KRE 65CC heads right? but do the flow as well as the rpms
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Old 02-11-14, 01:57AM   #23
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No. Edelbrock has a 65cc head as well. The port size out-of-the-box is smaller but they can be ported as well.

http://www.sandovalperformance.com/#...galleryv2169=0

Not listed, but included with the roller spring option, are lightweight tool steel valve spring retainers.

As was stated before, not much is needed for 500hp.
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Old 02-12-14, 12:17AM   #24
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Well guys things worked out and I I am happy to say that I can get the 64cc high ports I am super pumped about this because I feel these are the perfect head for me to grow into and hopefully within a couple years I'll have a Mr1 or a IA block so I won't have to worry about capping the power lol
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Old 02-12-14, 01:41AM   #25
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GOOD DEAL! Keep us informed of your progress.
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Old 02-12-14, 04:14AM   #26
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Will do for sure I would like to thank you all again I know this is a forum and that's what it's for but without guys like you and your knowledge we couldn't make this stuff happen
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