Both heads will work well, but i always try to use the t/a products, since he was the one that took a gamble on casting aftermarket heads for us.Sure, edelbrock stepped up, but mike was the first, so i use his parts.
If I/when buy a new set it will be from TA. I do not recomend Bulldog heads for a person that does not do the work them self. They need work put into them.
It depends... To calculate compression ratio, you will need: Bore diameter Combustion chamber volume Gasket bore diameter Gasket compressed thickness Deck clearance Piston dome or dish volume Without measuring any of these, you can only guess at actual static compression ratio. Devon
The chambers in the current production run of Stage 2SE have been running 60cc. This will help if you are running cast or TA1621 forged pistons because their compressions are down due to their bigger cc dish volume. Stage 1SE chambers have been running about 62cc. Edelbrock heads run around 68cc. We have been working with different cutters for the valve job on the intake side of our heads recently. A set of SE heads we just did a valve job on for a customer the other day flowed 298cfm@.500" and 302cfm@.550", no port work at all. Edelbrocks will be 277cfm in that range of lift. To the contrary, the Edelbrocks do not respond to port work anything close to the TA heads. You will put a fare amount of work into them to equal the TA's out of the box. To let those who don't know, we do port heads at here at TA Performance and may I say I feel that they are better that most out there. We are very capable of meeting or exceeding your porting needs, please consider us the next time your looking to port your aluminum heads. If you purchase a new set of heads from us, save your self the time and expense of shipping them around for porting. The quality of our machine work (valve jobs, guide work etc.) we feel is one of, if not the best. We use all of the latest tools to check our machine work for quality. As a matter of fact, I'm am proud of what we have been able to achieve. Recently we shipped the best set of Stage 2TE heads I feel we have ever ported. I really hate to post air numbers because they always bring on debate, but on our Super Flow 600 this what they flowed. One other reason I don't like posting big numbers from our best heads (until we back them up) is that they may never be reproduced. So for us at TA, we feel the bar has been raised and now know what we need shoot for. ................CFM...........................Did not use ........Intake......Exhaust..........Strong Exhaust port .050....48.8.........36.3.....................40.1 .100....82.5.........68.8.....................73.7 .200..158.3........129.7...................131.2 .300..240.2........176.2...................180.9 .400..307.6........215.2...................228.3 .450..338.8........227.7...................243.3 .500..365.5........237.1...................252.7 .550..378.9........243.3...................260.2 .600..380.7........246.4...................263.3 .650..385.1........249.6...................265.2 .700..385.1........250.8...................270.1 We chose not to make the exhaust port any stronger because of the application. I posted exhaust numbers that we could have shipped.
thats starting to get real close to the 400cfm mark any chance of getting it there with that small of a port mike?
And I must say they are impressive looking heads Mike. I'll dyno the thing once you get that roller to me and I finish it. Thanks again for all the help:3gears: :3gears: :3gears: :3gears: . Thank you, Larry Johnson Westshore Transmissions Ltd. 1081 Dunford Ave. Victoria, BC V9B 2S4 (866)459-7070 or (250)478-7070 ASE and ATRA Certified Journeyman Transmission Tech www.westshoretrans.com "Where Quality is Automatic and Good Service is Standard
is it necessary to make holes for the extra head studs on the ta stage 2 se head ?? Can i run it with the stock one only????o No:
What compression ratio do you plan to run, and what's your max rpm? It looks like you'll be below 10:1 compression, you won't need the extra bolts. The additional bolts won't be necessary unless you plan a more radical combination in the future. Devon
Hi Mike and Tim, Here are the dyno results :TU: from the Stage 2 heads and other parts I purchased. The motor is a 11.5 (I raised it from 11.2) compression ratio running on 94 octane (92 works in it too). I had it ran in on Tuesday to seat the rings and make sure it's adjusted for the races in another week. You probably don't remember we are using a 261/261 degree and .400" lobe (with 1.6 ratio rockers and .020" lash) lift cam. I ended up using 1.8 ratio Jesels so it has an actual .7" lift with .020" lash. Runs great, cool, nice flat torque curve, and it impressed the dyno guys as it is the first Buick they ran on the dyno, and the highest horse motor they have run on pump gas so far here. They run Sprint cars themselves as well as they are very knowledgable machinist. We had to play with timing and jetting a few times before they would even run it hard, I would have probably cooked it before I got it setup at the track. Anyways, I am very happy with the results, it should be a great, reliable street motor. Thanks TA for the great parts. :3gears:
