Buddy, Sumner is going to use an Atlas 4 banger in his lakester. You might talk to him about it. I just completed installing an Atlas Vortec 4200 in my old beater GMC, sure runs smooth.
The 4 might be too large for his rules at 2800 and 2900 cc but these are good motors and more and more people are using them. If you go to the 6 min. 30 sec. spot on the following link you will see one in an altered running low 9's at 140+ mph and it is naturally aspirated not blown....
https://www.youtube.com/watch?v=Xeo6fzQbKdc&feature=youtu.be&noredirect=1The 6 cylinder version that Gary is using in his GMC...
... is the NHRA record holder right now.....
.....in its class running in the 7's again na. Self Racing has build a number of the 6's for customers and a few 4's.
John at Quad 4 Rods was making me a flywheel for the 4 but I talked to him the other day and he is revising it for the 6 so I'm backing out of the 4 and will probably run the 6 as an E motor or de-stroke it down to a F motor. I'd still like to put the 4 in my pickup with a turbo on it. I feel the 6 as an F motor has more potential than the 4 as an F motor with 2 more sets of great flowing ports and with the power over 6 sets of rods, pistons and crank throws it should be more reliable under huge boost.
Not sure about the rules Buddy is running under but one of the 2900's de-stroked down to the size needed to fit the rules would be a killer motor. The intakes on these flow about 270 stock and about 330 with just a little work and some have them flowing over 400 with more work.
Too many projects so any of this could change for me
Sum
