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Old 03-31-12, 10:16PM   #1
Big Speed
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Default Tiger Custom Heads .

We just finished some of the development on the Tiger Custom series ,These heads have welding,reheatreating and relocations.The largest ports flow from 488 to 497cfm depending on sizing,valve and mcsa can be manipulated per application,they flow 135-137 cfm per inch mcsa.The exhaust port will be developed with air speed and area per application.Typical exhaust flow will be from 275 to 310 cfms.Those who buy by flow numbers alone will think they are weak on the exhaust ,those who are knowledgeable will know.Bill C.
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Old 04-01-12, 12:50AM   #2
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Nice numbers
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Old 04-01-12, 12:54AM   #3
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From what I under stand the Tigers are still king.
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Old 04-01-12, 05:20PM   #4
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Ther is a flow sheet posted on PY.Bill C.
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Old 06-05-12, 05:59PM   #5
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My next heads are Tigers ..
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Old 06-19-12, 09:43AM   #6
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x2 yea hoping to save up enough to do A aluminum block Tiger combo for next combo. figure next 18 months should have enough saved to get it into the works.
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Old 08-22-12, 02:04AM   #7
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Welding is under way on the first set of Tiger Custom heads ,will report on progress.Bill C.
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Old 08-22-12, 11:29AM   #8
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The nice thing about the Tiger heads is they have a proven track record for making HP. When I price out a set with Frank I was surprise at the price. I was expecting them to cost a hell of allot more. But at the time it just wasn't in my budget. Of course the economy didn't help either.
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Old 09-11-12, 07:53AM   #9
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It was not easy but I have tigers on my 69 firebird street car. Dave Wilcox ported them and they flow about 440 cfm. I thought they would be sluggish on the lower RPMs, but, not so. Oh, almost forgot, they are on a 535 motor also. This thing has power from the time I put my foot down till I let off and it doesn't matter the gear I'm in. Went to the 1/8 mi track and ran consistant 6.90's @ 101mph spinning the 9" slicks. The converter is only a 3000 stall, good for street but not for track. 10.5 compression pump gas friendly.

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Old 09-11-12, 08:55AM   #10
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Damn it wish I had the money for those heads.
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Old 09-11-12, 01:37PM   #11
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x2 REALLY thinking going tigers if i stay Pontiac on my next race build. Got a 461 bottom end getting checked out right now for the Volvo project.
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Old 09-13-12, 02:15AM   #12
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The more sets of customs we can do at one time will bring the cost down considerably.Bill C.
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Old 09-22-12, 04:03PM   #13
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Quote:
Originally Posted by steve View Post
It was not easy but I have tigers on my 69 firebird street car. Dave Wilcox ported them and they flow about 440 cfm. I thought they would be sluggish on the lower RPMs, but, not so. Oh, almost forgot, they are on a 535 motor also. This thing has power from the time I put my foot down till I let off and it doesn't matter the gear I'm in. Went to the 1/8 mi track and ran consistant 6.90's @ 101mph spinning the 9" slicks. The converter is only a 3000 stall, good for street but not for track. 10.5 compression pump gas friendly.

Steve
The motor you describe sounds exactly like what I want to build. What was not easy about putting this engine in your car? I figure this engine will cost about $20. Thanks Scott
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Old 09-30-12, 08:40AM   #14
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SPURE, Here are some of the challenges.

1- the angle of the exhaust ports were a little different than the edelbrock heads I was using. When bolted up to the engine, driver side hit the steering box.
2- Seems like the motor mount bosses were in a slightly different location, so the motor sat crooked.
3- After porting the heads, the ports are much, much larger and taller than edelbrocks. The victor manifold I had, would not even cover the port opening and besides that, you need a spacer because of the heads taller port. The manifold would also need new mounting holes drilled for the tiger head bolt pattern. I looked into a tiger intake or BOP intake but both will require cutting my Super 400 hood so the carbs would come through. I have about $2000.00 in this hood and will not cut it. So, I fabbed a low profile aluminum sheetmetal intake the fits nicely under the hood with a 1050 dominator carb. A definite compromise in power, though. My goal with this set up was more power and room to make more if I wanted.

Steve
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Old 09-30-12, 08:45AM   #15
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Spure, The motor mount/ frame and trans mounts need to be slightly modified to get the engine straight and headers to fit. And, yes, it cost $20,000.00 when done. It makes about 800 HP right now and when I reconfigure the intake it will make about 50 -60 more.

Steve
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