We are now porting ALL heads, even Mini Coopers

The stock E7TE Ford head castings flows an asthmatic 156 cfm on the intake side at .500. They are solid heads that for decades have performed flawlessly everyday, but need a little help to get them to breath. Thumper Performance can take your Ford E7TEs and get them to out perform out-of-the-box GT40 series and some expensive aftermarket heads AND for less than the cost of the new heads. To learn more, click the links below to learn how.

Part 1 of your cylinder head education. Important facts that you should know before you start spending your hard earned money on heads that don't fullfil your needs.

Part 2 of your cylinder head education. How valves can boost or kill your performance.
Whatcha got? We can handle it. Click Here
Think you know enough? Ready to decide on your path to 12s? Click Here
Looking for ported and polished Mini Cooper heads? Click Here
Got Questions?


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2003 Thumper Performance of Orange Park, Florida || Contact Mike with any questions you may have

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