Are there any uprated 4.0 pistons with cutouts. that are not going to cost the earth.
Or should I just get the stand ones cut.
Thanks
Leigh
4.0 Uprated pistons.
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4.0 Uprated pistons.
Current V8 car TVR 400SE 240 BHP
Current Project TVR Tasmin Race, with 3.9 running at 230 BHP
Currently building a 4.6 300 BHP Xbolted Engine for it. Solid Lifters and Group A rockers, Stange 4 heads, Pocketed piston, fully balanced.
Current Project TVR Tasmin Race, with 3.9 running at 230 BHP
Currently building a 4.6 300 BHP Xbolted Engine for it. Solid Lifters and Group A rockers, Stange 4 heads, Pocketed piston, fully balanced.
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CastleMGBV8
- Top Dog
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- Location: Sidcup, Kent, UK
Leigh
You probably don't need to have valve cutouts, what cam are you thinking of using and which gaskets, tin would increase the compression by approx .5/1 and if you are not going for too much lift you should be ok.
Worth checking the piston to deck height when doing a test build and if they are up to 30thou down the bores could be beneficial to have the decks machined to bring the pistons 5-10thou below the decks and then check the valve to piston clearance to determine whether you need to put cutouts in the pistons.
Kevin.
You probably don't need to have valve cutouts, what cam are you thinking of using and which gaskets, tin would increase the compression by approx .5/1 and if you are not going for too much lift you should be ok.
Worth checking the piston to deck height when doing a test build and if they are up to 30thou down the bores could be beneficial to have the decks machined to bring the pistons 5-10thou below the decks and then check the valve to piston clearance to determine whether you need to put cutouts in the pistons.
Kevin.
